{"id":851,"date":"2026-10-12T16:48:32","date_gmt":"2026-10-12T16:48:32","guid":{"rendered":"https:\/\/avo6.com\/?page_id=851"},"modified":"2026-10-12T16:48:33","modified_gmt":"2026-10-12T16:48:33","slug":"calculs-de-dilution","status":"publish","type":"page","link":"https:\/\/avo6.com\/?page_id=851","title":{"rendered":"Calculs de dilution"},"content":{"rendered":"\n<p>Outils pour pr\u00e9parer une dilution au laboratoire : volume \u00e0 pr\u00e9lever, dilutions en s\u00e9rie (gammes, num\u00e9rations), facteur de dilution et concentration de l\u2019\u00e9chantillon d\u2019origine.<\/p>\n\n<div class=\"a6t-group a6t-has-tabs\" data-a6t-group=\"dilutions\"><nav class=\"a6t-tabs\" aria-label=\"Outils de cette page\"><ul><li><a href=\"#dilution-c1v1\" data-a6t-tab=\"dilution-c1v1\">C1V1 = C2V2<\/a><\/li><li><a href=\"#dilutions-serie\" data-a6t-tab=\"dilutions-serie\">Dilutions en s\u00e9rie<\/a><\/li><li><a href=\"#facteur-dilution\" data-a6t-tab=\"facteur-dilution\">Facteur de dilution<\/a><\/li><\/ul><\/nav>\t<section class=\"a6t-tool\" id=\"dilution-c1v1\" data-a6t-panel aria-labelledby=\"a6t-dilution-c1v1-title\">\n\t\t<h2 id=\"a6t-dilution-c1v1-title\" class=\"a6t-title\">Dilution C1 \u00d7 V1 = C2 \u00d7 V2<\/h2>\n\t\t<p class=\"a6t-lead\">Calcule la valeur manquante parmi concentration initiale, volume pr\u00e9lev\u00e9, concentration finale et volume final.<\/p>\n\n\t\t<form class=\"calc a6t-form\" data-a6t-tool=\"dilution-c1v1\" novalidate autocomplete=\"off\" aria-label=\"Calculateur : C1V1 = C2V2\">\n\t\t\t\t\t\t\t<p class=\"hint a6t-intro\">Renseignez trois valeurs et laissez vide celle \u00e0 calculer.<\/p>\n\t\t\t\t\t\t<fieldset class=\"a6t-fieldset\" disabled>\n\t\t\t\t<legend class=\"screen-reader-text\">Donn\u00e9es \u00e0 saisir<\/legend>\n\t\t\t\t<div class=\"field a6t-field\"><label for=\"a6t-dilution-c1v1-cUnit\">Unit\u00e9 de concentration (identique pour C1 et C2)<\/label><select id=\"a6t-dilution-c1v1-cUnit\" name=\"cUnit\" aria-describedby=\"a6t-dilution-c1v1-cUnit-err\"><option value=\"mol\/L\">mol\/L<\/option><option value=\"mmol\/L\" selected='selected'>mmol\/L<\/option><option value=\"\u00b5mol\/L\">\u00b5mol\/L<\/option><option value=\"g\/L\">g\/L<\/option><option value=\"mg\/mL\">mg\/mL<\/option><option value=\"mg\/L\">mg\/L<\/option><option value=\"\u00b5g\/mL\">\u00b5g\/mL<\/option><option value=\"UI\/mL\">UI\/mL<\/option><option value=\"%\">%<\/option><\/select><span class=\"error\" id=\"a6t-dilution-c1v1-cUnit-err\" data-a6t-err-for=\"cUnit\" aria-live=\"polite\"><\/span><\/div><div class=\"field a6t-field\"><label for=\"a6t-dilution-c1v1-c1\">C1 \u2014 concentration initiale<\/label><input id=\"a6t-dilution-c1v1-c1\" name=\"c1\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" value=\"\" aria-describedby=\"a6t-dilution-c1v1-c1-err\"><span class=\"error\" id=\"a6t-dilution-c1v1-c1-err\" data-a6t-err-for=\"c1\" aria-live=\"polite\"><\/span><\/div><div class=\"field a6t-field\"><label for=\"a6t-dilution-c1v1-v1\">V1 \u2014 volume pr\u00e9lev\u00e9<\/label><div class=\"input-unit\"><input id=\"a6t-dilution-c1v1-v1\" name=\"v1\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" value=\"\" aria-describedby=\"a6t-dilution-c1v1-v1-err\"><select id=\"a6t-dilution-c1v1-v1Unit\" name=\"v1Unit\" aria-label=\"Unit\u00e9 \u2014 V1 \u2014 volume pr\u00e9lev\u00e9\"><option value=\"\u00b5L\">\u00b5L<\/option><option value=\"mL\" selected='selected'>mL<\/option><option value=\"dL\">dL<\/option><option value=\"L\">L<\/option><\/select><\/div><span class=\"error\" id=\"a6t-dilution-c1v1-v1-err\" data-a6t-err-for=\"v1 v1Unit\" aria-live=\"polite\"><\/span><\/div><div class=\"field a6t-field\"><label for=\"a6t-dilution-c1v1-c2\">C2 \u2014 concentration finale<\/label><input id=\"a6t-dilution-c1v1-c2\" name=\"c2\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" value=\"\" aria-describedby=\"a6t-dilution-c1v1-c2-err\"><span class=\"error\" id=\"a6t-dilution-c1v1-c2-err\" data-a6t-err-for=\"c2\" aria-live=\"polite\"><\/span><\/div><div class=\"field a6t-field\"><label for=\"a6t-dilution-c1v1-v2\">V2 \u2014 volume final<\/label><div class=\"input-unit\"><input id=\"a6t-dilution-c1v1-v2\" name=\"v2\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" value=\"\" aria-describedby=\"a6t-dilution-c1v1-v2-err\"><select id=\"a6t-dilution-c1v1-v2Unit\" name=\"v2Unit\" aria-label=\"Unit\u00e9 \u2014 V2 \u2014 volume final\"><option value=\"\u00b5L\">\u00b5L<\/option><option value=\"mL\" selected='selected'>mL<\/option><option value=\"dL\">dL<\/option><option value=\"L\">L<\/option><\/select><\/div><span class=\"error\" id=\"a6t-dilution-c1v1-v2-err\" data-a6t-err-for=\"v2 v2Unit\" aria-live=\"polite\"><\/span><\/div>\t\t\t\t<div class=\"a6t-actions\">\n\t\t\t\t\t<button type=\"submit\" class=\"btn btn-primary\">Calculer<\/button>\n\t\t\t\t\t<button type=\"reset\" class=\"btn btn-ghost\">R\u00e9initialiser<\/button>\n\t\t\t\t\t<button type=\"button\" class=\"a6t-linkbtn\" data-a6t-example>Essayer l\u2019exemple<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/fieldset>\n\t\t\t<p class=\"error a6t-formerror\" data-a6t-err-for=\"_\" role=\"alert\"><\/p>\n\n\t\t\t<div class=\"calc-result a6t-result\" role=\"status\" aria-live=\"polite\" tabindex=\"-1\" hidden>\n\t\t\t\t<div class=\"a6t-main\"><\/div>\n\t\t\t\t<ul class=\"a6t-lines\"><\/ul>\n\t\t\t\t<div class=\"a6t-chart\"><\/div>\n\t\t\t\t<div class=\"a6t-table\"><\/div>\n\t\t\t\t<p class=\"a6t-formula\"><\/p>\n\t\t\t\t<ul class=\"a6t-notes\"><\/ul>\n\t\t\t\t<p class=\"hint\">R\u00e9sultat indicatif, \u00e0 interpr\u00e9ter par un professionnel de sant\u00e9.<\/p>\n\t\t\t\t<div class=\"a6t-result-actions\">\n\t\t\t\t\t<button type=\"button\" class=\"btn btn-ghost\" data-a6t-copy>Copier le r\u00e9sultat<\/button>\n\t\t\t\t\t<span class=\"a6t-copied\" aria-live=\"polite\"><\/span>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\n\t\t\t<noscript><p class=\"notice\">Ce calculateur fonctionne dans votre navigateur et n\u00e9cessite JavaScript. La formule et un exemple sont d\u00e9taill\u00e9s ci-dessous.<\/p><\/noscript>\n\t\t\t<script type=\"application\/json\" class=\"a6t-example-data\">{\"cUnit\":\"mmol\\\/L\",\"c1\":\"10\",\"c2\":\"1\",\"v2\":\"100\",\"v1Unit\":\"mL\",\"v2Unit\":\"mL\"}<\/script>\n\t\t<\/form>\n\n\t\t<div class=\"a6t-doc\">\n\t\t\t<h3>Formule<\/h3>\n\t\t\t<div class=\"a6t-formula-box\"><p>C1 \u00d7 V1 = C2 \u00d7 V2 ; volume de diluant = V2 \u2212 V1 ; facteur de dilution = V2 \/ V1.<\/p><\/div>\n\n\t\t\t<h3>Unit\u00e9s<\/h3>\n\t\t\t<p>C1 et C2 dans la m\u00eame unit\u00e9 ; V1 et V2 en \u00b5L, mL, dL ou L (unit\u00e9s ind\u00e9pendantes).<\/p>\n\n\t\t\t<h3>Exemple<\/h3>\n\t\t\t<p>Obtenir 100 mL \u00e0 1 mmol\/L \u00e0 partir d\u2019une solution \u00e0 10 mmol\/L : pr\u00e9lever V1 = 10 mL et compl\u00e9ter avec 90 mL de diluant.<\/p>\n\n\t\t\t<h3>Limites<\/h3>\n\t\t\t<ul>\n\t\t\t\t\t\t\t\t\t<li>Valable pour une dilution simple sans r\u00e9action chimique ni variation de volume au m\u00e9lange.<\/li>\n\t\t\t\t\t\t\t\t\t<li>Une dilution ne peut pas augmenter la concentration : C2 \u2264 C1 et V1 \u2264 V2.<\/li>\n\t\t\t\t\t\t\t<\/ul>\n\n\t\t\t<h3>R\u00e9f\u00e9rences<\/h3>\n\t\t\t<ol class=\"a6t-refs\">\n\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/goldbook.iupac.org\/\" rel=\"noopener\" target=\"_blank\">IUPAC. Compendium of Chemical Terminology (Gold Book) \u2014 concentration en quantit\u00e9 de mati\u00e8re, concentration massique, fraction massique, fraction volumique.<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<\/ol>\n\t\t\t<p class=\"a6t-verified\">Formule v\u00e9rifi\u00e9e par rapport aux r\u00e9f\u00e9rences ci-dessus le 12 octobre 2026.<\/p>\n\t\t<\/div>\n\t<\/section>\n\t\t<section class=\"a6t-tool\" id=\"dilutions-serie\" data-a6t-panel aria-labelledby=\"a6t-dilutions-serie-title\">\n\t\t<h2 id=\"a6t-dilutions-serie-title\" class=\"a6t-title\">Dilutions en s\u00e9rie<\/h2>\n\t\t<p class=\"a6t-lead\">Tableau des dilutions cumul\u00e9es et des concentrations, volumes de transfert et de diluant par tube.<\/p>\n\n\t\t<form class=\"calc a6t-form\" data-a6t-tool=\"dilutions-serie\" novalidate autocomplete=\"off\" aria-label=\"Calculateur : Dilutions en s\u00e9rie\">\n\t\t\t\t\t\t<fieldset class=\"a6t-fieldset\" disabled>\n\t\t\t\t<legend class=\"screen-reader-text\">Donn\u00e9es \u00e0 saisir<\/legend>\n\t\t\t\t<div class=\"field a6t-field\"><label for=\"a6t-dilutions-serie-factor\">Facteur de dilution par tube<\/label><input id=\"a6t-dilutions-serie-factor\" name=\"factor\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" value=\"\" aria-describedby=\"a6t-dilutions-serie-factor-hint a6t-dilutions-serie-factor-err\" aria-required=\"true\"><span class=\"hint\" id=\"a6t-dilutions-serie-factor-hint\">Ex. 10 pour une dilution au 1\/10, 2 pour 1\/2.<\/span><span class=\"error\" id=\"a6t-dilutions-serie-factor-err\" data-a6t-err-for=\"factor\" aria-live=\"polite\"><\/span><\/div><div class=\"field a6t-field\"><label for=\"a6t-dilutions-serie-steps\">Nombre de tubes<\/label><input id=\"a6t-dilutions-serie-steps\" name=\"steps\" type=\"text\" inputmode=\"numeric\" autocomplete=\"off\" spellcheck=\"false\" value=\"\" aria-describedby=\"a6t-dilutions-serie-steps-hint a6t-dilutions-serie-steps-err\" aria-required=\"true\"><span class=\"hint\" id=\"a6t-dilutions-serie-steps-hint\">1 \u00e0 20.<\/span><span class=\"error\" id=\"a6t-dilutions-serie-steps-err\" data-a6t-err-for=\"steps\" aria-live=\"polite\"><\/span><\/div><div class=\"field a6t-field\"><label for=\"a6t-dilutions-serie-c0\">Concentration de d\u00e9part \u2014 facultatif<\/label><div class=\"input-unit\"><input id=\"a6t-dilutions-serie-c0\" name=\"c0\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" value=\"\" aria-describedby=\"a6t-dilutions-serie-c0-err\"><select id=\"a6t-dilutions-serie-cUnit\" name=\"cUnit\" aria-label=\"Unit\u00e9 \u2014 Concentration de d\u00e9part \u2014 facultatif\"><option value=\"mol\/L\">mol\/L<\/option><option value=\"mmol\/L\">mmol\/L<\/option><option value=\"\u00b5mol\/L\">\u00b5mol\/L<\/option><option value=\"g\/L\">g\/L<\/option><option value=\"mg\/L\">mg\/L<\/option><option value=\"\u00b5g\/mL\" selected='selected'>\u00b5g\/mL<\/option><option value=\"UFC\/mL\">UFC\/mL<\/option><option value=\"copies\/mL\">copies\/mL<\/option><option value=\"UI\/mL\">UI\/mL<\/option><\/select><\/div><span class=\"error\" id=\"a6t-dilutions-serie-c0-err\" data-a6t-err-for=\"c0 cUnit\" aria-live=\"polite\"><\/span><\/div><div class=\"field a6t-field\"><label for=\"a6t-dilutions-serie-vtube\">Volume final par tube \u2014 facultatif<\/label><div class=\"input-unit\"><input id=\"a6t-dilutions-serie-vtube\" name=\"vtube\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" value=\"\" aria-describedby=\"a6t-dilutions-serie-vtube-err\"><select id=\"a6t-dilutions-serie-vUnit\" name=\"vUnit\" aria-label=\"Unit\u00e9 \u2014 Volume final par tube \u2014 facultatif\"><option value=\"\u00b5L\" selected='selected'>\u00b5L<\/option><option value=\"mL\">mL<\/option><option value=\"dL\">dL<\/option><option value=\"L\">L<\/option><\/select><\/div><span class=\"error\" id=\"a6t-dilutions-serie-vtube-err\" data-a6t-err-for=\"vtube vUnit\" aria-live=\"polite\"><\/span><\/div>\t\t\t\t<div class=\"a6t-actions\">\n\t\t\t\t\t<button type=\"submit\" class=\"btn btn-primary\">Calculer<\/button>\n\t\t\t\t\t<button type=\"reset\" class=\"btn btn-ghost\">R\u00e9initialiser<\/button>\n\t\t\t\t\t<button type=\"button\" class=\"a6t-linkbtn\" data-a6t-example>Essayer l\u2019exemple<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/fieldset>\n\t\t\t<p class=\"error a6t-formerror\" data-a6t-err-for=\"_\" role=\"alert\"><\/p>\n\n\t\t\t<div class=\"calc-result a6t-result\" role=\"status\" aria-live=\"polite\" tabindex=\"-1\" hidden>\n\t\t\t\t<div class=\"a6t-main\"><\/div>\n\t\t\t\t<ul class=\"a6t-lines\"><\/ul>\n\t\t\t\t<div class=\"a6t-chart\"><\/div>\n\t\t\t\t<div class=\"a6t-table\"><\/div>\n\t\t\t\t<p class=\"a6t-formula\"><\/p>\n\t\t\t\t<ul class=\"a6t-notes\"><\/ul>\n\t\t\t\t<p class=\"hint\">R\u00e9sultat indicatif, \u00e0 interpr\u00e9ter par un professionnel de sant\u00e9.<\/p>\n\t\t\t\t<div class=\"a6t-result-actions\">\n\t\t\t\t\t<button type=\"button\" class=\"btn btn-ghost\" data-a6t-copy>Copier le r\u00e9sultat<\/button>\n\t\t\t\t\t<span class=\"a6t-copied\" aria-live=\"polite\"><\/span>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\n\t\t\t<noscript><p class=\"notice\">Ce calculateur fonctionne dans votre navigateur et n\u00e9cessite JavaScript. La formule et un exemple sont d\u00e9taill\u00e9s ci-dessous.<\/p><\/noscript>\n\t\t\t<script type=\"application\/json\" class=\"a6t-example-data\">{\"factor\":\"10\",\"steps\":\"3\",\"c0\":\"1000\",\"cUnit\":\"\\u00b5g\\\/mL\",\"vtube\":\"1000\",\"vUnit\":\"\\u00b5L\"}<\/script>\n\t\t<\/form>\n\n\t\t<div class=\"a6t-doc\">\n\t\t\t<h3>Formule<\/h3>\n\t\t\t<div class=\"a6t-formula-box\"><p>Dilution cumul\u00e9e au tube n = facteur<sup>n<\/sup> ; concentration = C0 \/ facteur<sup>n<\/sup>.<\/p><p>Volume transf\u00e9r\u00e9 = volume par tube \/ facteur ; diluant = volume par tube \u2212 volume transf\u00e9r\u00e9.<\/p><\/div>\n\n\t\t\t<h3>Unit\u00e9s<\/h3>\n\t\t\t<p>Facteur sans unit\u00e9 (&gt; 1) ; C0 dans l\u2019unit\u00e9 choisie ; volumes en \u00b5L, mL, dL ou L.<\/p>\n\n\t\t\t<h3>Exemple<\/h3>\n\t\t\t<p>Trois dilutions au 1\/10 \u00e0 partir de 1 000 \u00b5g\/mL, 1 000 \u00b5L par tube : transf\u00e9rer 100 \u00b5L dans 900 \u00b5L ; dernier tube dilu\u00e9 au 1\/1 000 (1 \u00b5g\/mL).<\/p>\n\n\t\t\t<h3>Limites<\/h3>\n\t\t\t<ul>\n\t\t\t\t\t\t\t\t\t<li>Convention : \u00ab dilution au 1\/10 \u00bb = 1 volume d\u2019\u00e9chantillon dans 10 volumes au total (1 + 9). Une notation \u00ab 1:10 \u00bb est parfois utilis\u00e9e pour 1 + 10 : v\u00e9rifiez votre protocole.<\/li>\n\t\t\t\t\t\t\t\t\t<li>Les erreurs de pipetage se cumulent d\u2019un tube \u00e0 l\u2019autre.<\/li>\n\t\t\t\t\t\t\t<\/ul>\n\n\t\t\t<h3>R\u00e9f\u00e9rences<\/h3>\n\t\t\t<ol class=\"a6t-refs\">\n\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/goldbook.iupac.org\/\" rel=\"noopener\" target=\"_blank\">IUPAC. Compendium of Chemical Terminology (Gold Book) \u2014 concentration en quantit\u00e9 de mati\u00e8re, concentration massique, fraction massique, fraction volumique.<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<\/ol>\n\t\t\t<p class=\"a6t-verified\">Formule v\u00e9rifi\u00e9e par rapport aux r\u00e9f\u00e9rences ci-dessus le 12 octobre 2026.<\/p>\n\t\t<\/div>\n\t<\/section>\n\t\t<section class=\"a6t-tool\" id=\"facteur-dilution\" data-a6t-panel aria-labelledby=\"a6t-facteur-dilution-title\">\n\t\t<h2 id=\"a6t-facteur-dilution-title\" class=\"a6t-title\">Facteur de dilution<\/h2>\n\t\t<p class=\"a6t-lead\">Facteur \u00e0 partir des volumes d\u2019\u00e9chantillon et de diluant, et concentration de l\u2019\u00e9chantillon non dilu\u00e9.<\/p>\n\n\t\t<form class=\"calc a6t-form\" data-a6t-tool=\"facteur-dilution\" novalidate autocomplete=\"off\" aria-label=\"Calculateur : Facteur de dilution\">\n\t\t\t\t\t\t<fieldset class=\"a6t-fieldset\" disabled>\n\t\t\t\t<legend class=\"screen-reader-text\">Donn\u00e9es \u00e0 saisir<\/legend>\n\t\t\t\t<div class=\"field a6t-field\"><label for=\"a6t-facteur-dilution-vs\">Volume d\u2019\u00e9chantillon<\/label><input id=\"a6t-facteur-dilution-vs\" name=\"vs\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" value=\"\" aria-describedby=\"a6t-facteur-dilution-vs-err\" aria-required=\"true\"><span class=\"error\" id=\"a6t-facteur-dilution-vs-err\" data-a6t-err-for=\"vs\" aria-live=\"polite\"><\/span><\/div><div class=\"field a6t-field\"><label for=\"a6t-facteur-dilution-vd\">Volume de diluant ajout\u00e9<\/label><input id=\"a6t-facteur-dilution-vd\" name=\"vd\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" value=\"\" aria-describedby=\"a6t-facteur-dilution-vd-hint a6t-facteur-dilution-vd-err\" aria-required=\"true\"><span class=\"hint\" id=\"a6t-facteur-dilution-vd-hint\">M\u00eame unit\u00e9 que l\u2019\u00e9chantillon.<\/span><span class=\"error\" id=\"a6t-facteur-dilution-vd-err\" data-a6t-err-for=\"vd\" aria-live=\"polite\"><\/span><\/div><div class=\"field a6t-field\"><label for=\"a6t-facteur-dilution-measured\">Concentration mesur\u00e9e apr\u00e8s dilution \u2014 facultatif<\/label><div class=\"input-unit\"><input id=\"a6t-facteur-dilution-measured\" name=\"measured\" type=\"text\" inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" value=\"\" aria-describedby=\"a6t-facteur-dilution-measured-err\"><select id=\"a6t-facteur-dilution-mUnit\" name=\"mUnit\" aria-label=\"Unit\u00e9 \u2014 Concentration mesur\u00e9e apr\u00e8s dilution \u2014 facultatif\"><option value=\"mmol\/L\">mmol\/L<\/option><option value=\"\u00b5mol\/L\">\u00b5mol\/L<\/option><option value=\"g\/L\">g\/L<\/option><option value=\"mg\/L\" selected='selected'>mg\/L<\/option><option value=\"\u00b5g\/L\">\u00b5g\/L<\/option><option value=\"UI\/L\">UI\/L<\/option><option value=\"UFC\/mL\">UFC\/mL<\/option><option value=\"copies\/mL\">copies\/mL<\/option><\/select><\/div><span class=\"error\" id=\"a6t-facteur-dilution-measured-err\" data-a6t-err-for=\"measured mUnit\" aria-live=\"polite\"><\/span><\/div>\t\t\t\t<div class=\"a6t-actions\">\n\t\t\t\t\t<button type=\"submit\" class=\"btn btn-primary\">Calculer<\/button>\n\t\t\t\t\t<button type=\"reset\" class=\"btn btn-ghost\">R\u00e9initialiser<\/button>\n\t\t\t\t\t<button type=\"button\" class=\"a6t-linkbtn\" data-a6t-example>Essayer l\u2019exemple<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/fieldset>\n\t\t\t<p class=\"error a6t-formerror\" data-a6t-err-for=\"_\" role=\"alert\"><\/p>\n\n\t\t\t<div class=\"calc-result a6t-result\" role=\"status\" aria-live=\"polite\" tabindex=\"-1\" hidden>\n\t\t\t\t<div class=\"a6t-main\"><\/div>\n\t\t\t\t<ul class=\"a6t-lines\"><\/ul>\n\t\t\t\t<div class=\"a6t-chart\"><\/div>\n\t\t\t\t<div class=\"a6t-table\"><\/div>\n\t\t\t\t<p class=\"a6t-formula\"><\/p>\n\t\t\t\t<ul class=\"a6t-notes\"><\/ul>\n\t\t\t\t<p class=\"hint\">R\u00e9sultat indicatif, \u00e0 interpr\u00e9ter par un professionnel de sant\u00e9.<\/p>\n\t\t\t\t<div class=\"a6t-result-actions\">\n\t\t\t\t\t<button type=\"button\" class=\"btn btn-ghost\" data-a6t-copy>Copier le r\u00e9sultat<\/button>\n\t\t\t\t\t<span class=\"a6t-copied\" aria-live=\"polite\"><\/span>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\n\t\t\t<noscript><p class=\"notice\">Ce calculateur fonctionne dans votre navigateur et n\u00e9cessite JavaScript. La formule et un exemple sont d\u00e9taill\u00e9s ci-dessous.<\/p><\/noscript>\n\t\t\t<script type=\"application\/json\" class=\"a6t-example-data\">{\"vs\":\"100\",\"vd\":\"900\",\"measured\":\"5\",\"mUnit\":\"mg\\\/L\"}<\/script>\n\t\t<\/form>\n\n\t\t<div class=\"a6t-doc\">\n\t\t\t<h3>Formule<\/h3>\n\t\t\t<div class=\"a6t-formula-box\"><p>Facteur = (V \u00e9chantillon + V diluant) \/ V \u00e9chantillon ; concentration initiale = concentration mesur\u00e9e \u00d7 facteur.<\/p><\/div>\n\n\t\t\t<h3>Unit\u00e9s<\/h3>\n\t\t\t<p>Volumes dans la m\u00eame unit\u00e9. Concentration dans l\u2019unit\u00e9 choisie.<\/p>\n\n\t\t\t<h3>Exemple<\/h3>\n\t\t\t<p>100 \u00b5L d\u2019\u00e9chantillon + 900 \u00b5L de diluant : facteur 10 (dilution au 1\/10) ; une mesure de 5 mg\/L correspond \u00e0 50 mg\/L dans l\u2019\u00e9chantillon.<\/p>\n\n\t\t\t<h3>Limites<\/h3>\n\t\t\t<ul>\n\t\t\t\t\t\t\t\t\t<li>La reconversion suppose une r\u00e9ponse lin\u00e9aire de la m\u00e9thode dans la zone de mesure.<\/li>\n\t\t\t\t\t\t\t<\/ul>\n\n\t\t\t<h3>R\u00e9f\u00e9rences<\/h3>\n\t\t\t<ol class=\"a6t-refs\">\n\t\t\t\t\t\t\t\t\t<li>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/goldbook.iupac.org\/\" rel=\"noopener\" target=\"_blank\">IUPAC. Compendium of Chemical Terminology (Gold Book) \u2014 concentration en quantit\u00e9 de mati\u00e8re, concentration massique, fraction massique, fraction volumique.<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t<\/ol>\n\t\t\t<p class=\"a6t-verified\">Formule v\u00e9rifi\u00e9e par rapport aux r\u00e9f\u00e9rences ci-dessus le 12 octobre 2026.<\/p>\n\t\t<\/div>\n\t<\/section>\n\t<aside class=\"box box-warning a6t-disclaimer\" role=\"note\"><strong>Avertissement :<\/strong> ces outils sont p\u00e9dagogiques. Les calculs sont effectu\u00e9s dans votre navigateur ; aucune valeur n\u2019est enregistr\u00e9e ni transmise. Ils ne posent pas de diagnostic et ne remplacent pas l\u2019avis d\u2019un m\u00e9decin, d\u2019un biologiste ou d\u2019un pharmacien.<\/aside><nav class=\"a6t-related\" aria-labelledby=\"a6t-rel-dilutions\"><h2 id=\"a6t-rel-dilutions\">Outils associ\u00e9s<\/h2><ul><li><a href=\"https:\/\/avo6.com\/?page_id=853\">Pr\u00e9paration de solutions<\/a><\/li><li><a href=\"https:\/\/avo6.com\/?page_id=849\">Convertisseur d\u2019unit\u00e9s biologiques<\/a><\/li><li><a href=\"https:\/\/avo6.com\/?page_id=857\">Tous les outils de biologie m\u00e9dicale<\/a><\/li><\/ul><\/nav><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Outils pour pr\u00e9parer une dilution au laboratoire : volume \u00e0 pr\u00e9lever, dilutions en s\u00e9rie (gammes, num\u00e9rations), facteur de dilution et concentration de l\u2019\u00e9chantillon d\u2019origine.<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"class_list":["post-851","page","type-page","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"Outils pour pr\u00e9parer une dilution au laboratoire : volume \u00e0 pr\u00e9lever, dilutions en s\u00e9rie (gammes, num\u00e9rations), facteur de dilution et concentration de l\u2019\u00e9chantillon d\u2019origine.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/avo6.com\/?page_id=851\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"fr_FR\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Le Monde Des Analyses M\u00e9dicales \u2013 Si vous souhaitez en savoir plus sur les analyses m\u00e9dicales et leur fonctionnement ? 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