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- [{"id":"5f7aDQ","type":"customText","value":"<p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\">1. 绘制环氧乙烷标准曲线</span></p><p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\">1.1 标准溶液的制备</span></p><p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\"> 取外购环氧乙烷标准液1支(约1ml)，用移液器吸取全部的EO标准液置已去皮的50ml容量瓶(已加水30ml)中，精密称定0.9980g,再加水至刻度，摇匀，即得99.7840μg/mL环氧乙烷标准贮备液。再稀释制备1μg/ml-10μg/ml六个系列浓度的标准溶液(实际浓度为0.9978μg/ml、2.9935μg/ml、4.9892μg/ml、6.9849μg/ml、8.9806μg/ml、9.9784μg/ml)。</span></p><p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\">1.2 进样及绘制标曲</span></p><p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\"> 精确量取上述各浓度标准溶液各5ml,分别置20ml顶空瓶中，密封，恒温(60℃±1℃)中平衡40min。依次进样，记录环氧乙烷峰面积，绘制标曲(见附件 )。</span></p><p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\">2.样品试液制备</span></p><p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\"> 取2个最小包装的样品，分别称取样品①1065_g、②1.1876_g,加入纯化水5ml,振摇， /℃浸提一小时。</span></p><p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\">3.样品测试</span></p><p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\"> 分别量取5ml样液置20ml顶空瓶中，密封，置顶空进样器中60℃±1℃平衡40min,再1ml进样检测，记录峰面积。(图谱见附件 )。</span></p><p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\">4.含量计算</span></p><p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\"> 计算公式：试样EO浓度X=(Y-b)/a(X:EO浓度μg/mL,Y:峰面积)样品EO含量(μg/g)=试样E0浓度(μg/ml)×稀释体积(m1)/样品质量(g)结果为人咕 _ug/g(计算过程见附件 )</span></p><p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\">5.检出限测定</span></p><p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\"> 当样品未检出环氧乙烷时，应进行检出限的测定：</span></p><p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\"> 取（ ）/μg/ml环氧乙烷标准溶液，稀释（ <input type=\"text\" class=\"templateInput\" id=\"onP2V\"> ）倍(浓度为（ μg/ml)后，进样测试，记录峰高值(I)（ <input type=\"text\" class=\"templateInput\" id=\"p72gD\"> ）,噪音值(N)（ <input type=\"text\" class=\"templateInput\" id=\"MX6xb\"> ）。(图谱见附件 </span><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 255);\"></span><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\">)</span></p><p style=\"text-rendering: optimizelegibility; font-feature-settings: "kern"; font-kerning: normal; color: rgb(51, 51, 51); font-family: "Arial Normal", Arial, sans-serif; font-size: 13px; transition: none 0s ease 0s !important;\"><span style=\"transition: none 0s ease 0s !important; color: rgb(0, 0, 0);\"> 计算：检出限D=3×C/(I/N)×V/m 结果：<input type=\"text\" class=\"templateInput\" id=\"yDR7L\"></span></p>","valueObj":{}},{"id":"8koNDJ","type":"customTable","value":null,"valueObj":{"columns":[{"value":"区分","id":"YxupW","readonly":1},{"value":"1","id":"WkUJ7","readonly":1},{"value":"2","id":"Y3DzU","readonly":1},{"value":"3","id":"iD8F4","readonly":1}],"rows":[{"cells":[{"readonly":1,"value":"样液","id":"px4VO"},{"readonly":1,"value":"","id":"UibKg"},{"readonly":1,"value":"","id":"IYh1I"},{"value":"","readonly":1,"id":"wZH7Y"}]},{"cells":[{"readonly":1,"value":"空白液","id":"GdoDQ"},{"readonly":1,"value":"","id":"f4gjh"},{"readonly":1,"value":"","id":"OlpP4"},{"value":"","readonly":1,"id":"WvuDN"}]}]}},{"id":"3dp64m","type":"customText","value":" <input type=\"text\" class=\"templateInput\" id=\"UKv7z\" style=\"width: 300px;\"> <input type=\"text\" class=\"templateInput\" id=\"5Llio\" style=\"width: 120px;\">","valueObj":{"UKv7z":"计算：检验液与空白对照液pH值之差为","5Llio":""}}]
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