{"id":3522,"date":"2025-09-03T00:09:02","date_gmt":"2025-09-02T21:09:02","guid":{"rendered":"https:\/\/letgenbio.com\/dna-rna-concentration-and-purity-calculator\/"},"modified":"2025-10-06T18:43:38","modified_gmt":"2025-10-06T15:43:38","slug":"dna-rna-concentration-and-purity-calculator","status":"publish","type":"page","link":"https:\/\/letgenbio.com\/en\/dna-rna-concentration-and-purity-calculator\/","title":{"rendered":"DNA\/RNA Concentration and Purity Calculator"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"3522\" class=\"elementor elementor-3522 elementor-1535\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-80dedd3 ts-col-stretched-none ts-bg-color-over-image elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"80dedd3\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-768d271 ts-bg-color-over-image\" data-id=\"768d271\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5ade4a0 elementor-widget elementor-widget-html\" data-id=\"5ade4a0\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<!-- LETGENBIO CONCENTRATION & PURITY CALCULATOR START --><div id=\"letgenbio-spectro-calculator\"><style>#letgenbio-spectro-calculator {\n            background-color: #f4f8f9;\n            border-radius: 12px;\n            padding: 25px;\n            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);\n            font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n            color: #333;\n            max-width: 500px;\n            margin: 20px auto;\n            border: 1px solid #dae5e8;\n        }\n        #letgenbio-spectro-calculator h3 {\n            margin: 0 0 20px 0;\n            font-size: 22px;\n            color: #1a5a6e;\n            text-align: center;\n            display: flex;\n            align-items: center;\n            justify-content: center;\n        }\n        #letgenbio-spectro-calculator h3 svg {\n            margin-right: 10px;\n        }\n        #letgenbio-spectro-calculator .calc-section {\n            margin-bottom: 20px;\n        }\n        #letgenbio-spectro-calculator .calc-section-title {\n            font-weight: 600;\n            margin-bottom: 10px;\n            font-size: 16px;\n            color: #1a5a6e;\n        }\n        #letgenbio-spectro-calculator .radio-group {\n            display: grid;\n            grid-template-columns: repeat(3, 1fr);\n            gap: 10px;\n            margin-bottom: 20px;\n        }\n        #letgenbio-spectro-calculator .radio-group label {\n            background: #fff;\n            border: 1px solid #ced4da;\n            border-radius: 8px;\n            padding: 12px 10px;\n            cursor: pointer;\n            transition: all 0.2s ease;\n            text-align: center;\n            font-size: 14px;\n        }\n        #letgenbio-spectro-calculator .radio-group input[type=\"radio\"]:checked + label {\n            background-color: #e8f5f8;\n            border-color: #2a9d8f;\n            color: #124d5b;\n            font-weight: 600;\n            box-shadow: 0 0 0 2px rgba(42, 157, 143, 0.2);\n        }\n        #letgenbio-spectro-calculator .radio-group input[type=\"radio\"] {\n            display: none;\n        }\n        #letgenbio-spectro-calculator .input-group {\n            display: flex;\n            align-items: center;\n            margin-bottom: 15px;\n        }\n        #letgenbio-spectro-calculator .input-group label {\n            flex: 0 0 140px;\n            font-weight: 500;\n            font-size: 15px;\n            padding-right: 10px;\n        }\n        #letgenbio-spectro-calculator .input-field {\n            flex: 1 1 auto;\n        }\n        #letgenbio-spectro-calculator .input-field input[type=\"number\"] {\n            border: 1px solid #ced4da;\n            padding: 10px;\n            font-size: 16px;\n            width: 100%;\n            transition: border-color 0.2s, box-shadow 0.2s;\n            background-color: #fff;\n            border-radius: 8px;\n            -moz-appearance: textfield;\n        }\n        #letgenbio-spectro-calculator .input-field input[type=\"number\"]::-webkit-outer-spin-button,\n        #letgenbio-spectro-calculator .input-field input[type=\"number\"]::-webkit-inner-spin-button {\n            -webkit-appearance: none; margin: 0;\n        }\n        #letgenbio-spectro-calculator .input-field input[type=\"number\"]:focus {\n            outline: none; border-color: #2a9d8f; box-shadow: 0 0 0 2px rgba(42, 157, 143, 0.2);\n        }\n        #letgenbio-spectro-calculator .results-grid {\n            display: grid;\n            grid-template-columns: 1fr 1fr;\n            gap: 15px;\n            margin-top: 20px;\n        }\n        #letgenbio-spectro-calculator .result-section {\n            background-color: #e8f5f8; border: 1px solid #b7d7de; border-radius: 8px; padding: 20px; text-align: center;\n        }\n        #letgenbio-spectro-calculator .result-title {\n            font-size: 15px; color: #1a5a6e; margin: 0 0 10px 0; font-weight: 600;\n        }\n        #letgenbio-spectro-calculator .result-value {\n            font-size: 24px; font-weight: 700; color: #0f3a48; word-wrap: break-word;\n        }\n        #letgenbio-spectro-calculator .purity-status {\n            font-size: 18px; font-weight: 700; padding: 5px 10px; border-radius: 6px; display: inline-block;\n        }\n        #letgenbio-spectro-calculator .error-message {\n            color: #ae2012; font-size: 14px; text-align: center; min-height: 20px; margin-top: 15px;\n        }\n    <\/style><h3><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"24\" height=\"24\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M14.5 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V7.5L14.5 2z\"><\/path><polyline points=\"14 2 14 8 20 8\"><\/polyline><path d=\"M12 18a4 4 0 1 0 0-8 4 4 0 0 0 0 8z\"><\/path><path d=\"m12 12-1.5 4\"><\/path><\/svg>Concentration & Purity (A260)\n    <\/h3><div class=\"calc-section\"><div class=\"calc-section-title\">1. Select Sample Type:<\/div><div class=\"radio-group\" id=\"na-type-selection\"><div><input type=\"radio\" id=\"type-dsdna\" name=\"na-type\" value=\"dsDNA\" checked><label for=\"type-dsdna\">dsDNA<\/label><\/div><div><input type=\"radio\" id=\"type-ssdna\" name=\"na-type\" value=\"ssDNA\"><label for=\"type-ssdna\">ssDNA<\/label><\/div><div><input type=\"radio\" id=\"type-rna\" name=\"na-type\" value=\"RNA\"><label for=\"type-rna\">RNA<\/label><\/div><\/div><\/div><div class=\"calc-section\"><div class=\"calc-section-title\">2. Enter Measurements:<\/div><div class=\"input-group\"><label for=\"a260-value\">A260 Value<\/label><div class=\"input-field\"><input type=\"number\" id=\"a260-value\" placeholder=\"e.g., 0.5\"><\/div><\/div><div class=\"input-group\"><label for=\"a280-ratio\">A260\/A280 Ratio<\/label><div class=\"input-field\"><input type=\"number\" id=\"a280-ratio\" placeholder=\"e.g., 1.85\"><\/div><\/div><\/div><div class=\"error-message\" id=\"error-message\"><\/div><div class=\"results-grid\"><div class=\"result-section\"><div class=\"result-title\">Concentration<\/div><div class=\"result-value\" id=\"concentration-value\">-<\/div><\/div><div class=\"result-section\"><div class=\"result-title\">Purity Status<\/div><div class=\"result-value\"><span class=\"purity-status\" id=\"purity-status\">-<\/span><\/div><\/div><\/div><script>(function() {\n            const calculator = document.getElementById('letgenbio-spectro-calculator');\n            if (!calculator) return;\n\n            const a260Input = calculator.querySelector('#a260-value');\n            const a280RatioInput = calculator.querySelector('#a280-ratio');\n            const typeSelection = calculator.querySelector('#na-type-selection');\n            const concentrationValue = calculator.querySelector('#concentration-value');\n            const purityStatus = calculator.querySelector('#purity-status');\n            const errorMessage = calculator.querySelector('#error-message');\n\n            const factors = { dsDNA: 50, ssDNA: 33, RNA: 40 };\n            \n            const purityLevels = {\n                dna: [\n                    { min: 1.9, max: Infinity, text: 'High', color: '#fca311', bg: '#fff6e5' }, \/\/ Possible RNA contamination\n                    { min: 1.75, max: 1.9, text: 'Excellent', color: '#2a9d8f', bg: '#eaf6f5' },\n                    { min: 1.6, max: 1.75, text: 'Good', color: '#fca311', bg: '#fff6e5' }, \/\/ Possible protein contamination\n                    { min: -Infinity, max: 1.6, text: 'Low', color: '#e63946', bg: '#fdebec' } \/\/ Severe protein\/phenol contamination\n                ],\n                rna: [\n                    { min: 2.1, max: Infinity, text: 'High', color: '#fca311', bg: '#fff6e5' },\n                    { min: 1.9, max: 2.1, text: 'Excellent', color: '#2a9d8f', bg: '#eaf6f5' },\n                    { min: 1.8, max: 1.9, text: 'Good', color: '#fca311', bg: '#fff6e5' },\n                    { min: -Infinity, max: 1.8, text: 'Low', color: '#e63946', bg: '#fdebec' }\n                ]\n            };\n\n            function calculate() {\n                try {\n                    errorMessage.textContent = '';\n                    const a260 = parseFloat(a260Input.value);\n                    const a280Ratio = parseFloat(a280RatioInput.value);\n                    const type = calculator.querySelector('input[name=\"na-type\"]:checked').value;\n\n                    \/\/ Concentration\n                    if (isNaN(a260)) {\n                        concentrationValue.textContent = '-';\n                    } else if (a260 < 0) {\n                        concentrationValue.textContent = '-';\n                        throw new Error(\"A260 value cannot be negative.\");\n                    } else {\n                        const concentration = a260 * factors[type];\n                        concentrationValue.textContent = `${formatNumber(concentration)} ng\/\u00b5L`;\n                    }\n                    \n                    \/\/ Purity\n                    if (isNaN(a280Ratio)) {\n                        purityStatus.textContent = '-';\n                        purityStatus.style.backgroundColor = 'transparent';\n                        purityStatus.style.color = '#0f3a48';\n                    } else if (a280Ratio < 0) {\n                        purityStatus.textContent = '-';\n                        throw new Error(\"A260\/A280 ratio cannot be negative.\");\n                    } else {\n                        const levels = (type === 'RNA') ? purityLevels.rna : purityLevels.dna;\n                        const status = levels.find(level => a280Ratio >= level.min && a280Ratio < level.max);\n                        if (status) {\n                            purityStatus.textContent = status.text;\n                            purityStatus.style.backgroundColor = status.bg;\n                            purityStatus.style.color = status.color;\n                        }\n                    }\n                } catch(error) {\n                    errorMessage.textContent = error.message;\n                }\n            }\n            \n            function formatNumber(num) {\n                if (num === 0) return 0;\n                return parseFloat(num.toPrecision(4));\n            }\n\n            [a260Input, a280RatioInput].forEach(el => el.addEventListener('input', calculate));\n            typeSelection.addEventListener('change', calculate);\n            \n            \/\/ Initial state\n            purityStatus.textContent = '-';\n            purityStatus.style.backgroundColor = 'transparent';\n        })();\n    <\/script><\/div><!-- LETGENBIO CONCENTRATION & PURITY CALCULATOR END -->\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Concentration &#038; Purity (A260) 1. Select Sample Type:dsDNAssDNARNA2. Enter Measurements:A260 ValueA260\/A280 RatioConcentration-Purity Status-<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-3522","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/letgenbio.com\/en\/wp-json\/wp\/v2\/pages\/3522","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/letgenbio.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/letgenbio.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/letgenbio.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/letgenbio.com\/en\/wp-json\/wp\/v2\/comments?post=3522"}],"version-history":[{"count":0,"href":"https:\/\/letgenbio.com\/en\/wp-json\/wp\/v2\/pages\/3522\/revisions"}],"wp:attachment":[{"href":"https:\/\/letgenbio.com\/en\/wp-json\/wp\/v2\/media?parent=3522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}