【摘要】：目的介紹《尿中釩、鉻、鈷、鎘、鉈、鉛的測(cè)定電感耦合等離子體質(zhì)譜法》標(biāo)準(zhǔn)的制定依據(jù)和方法內(nèi)容。方法按照GBZ/T 210.5—2008《職業(yè)衛(wèi)生標(biāo)準(zhǔn)制定指南第5部分:生物材料中化學(xué)物質(zhì)測(cè)定方法》標(biāo)準(zhǔn)尿樣用體積分?jǐn)?shù)為1.0%的硝酸稀釋20倍后,采用電感耦合等離子體質(zhì)譜儀的標(biāo)準(zhǔn)模式和碰撞反應(yīng)池模式進(jìn)行測(cè)定,應(yīng)用標(biāo)準(zhǔn)曲線內(nèi)標(biāo)校正法進(jìn)行定量計(jì)算。結(jié)果 6種金屬元素在測(cè)定范圍內(nèi)線性關(guān)系良好,相關(guān)系數(shù)均≥0.999 1,方法檢出限為0.01~0.08μg/L,加標(biāo)回收率為87.5%~105.8%,批內(nèi)精密度為1.3%~5.2%,批間精密度為1.7%~7.2%。結(jié)論《尿中釩、鉻、鈷、鎘、鉈、鉛的測(cè)定電感耦合等離子體質(zhì)譜法》標(biāo)準(zhǔn)方法能同時(shí)測(cè)定尿中多種金屬元素,具有較低的檢出限,良好的精密度和準(zhǔn)確度,可推廣應(yīng)用。
[Abstract]:Objective to introduce the basis and method for the determination of vanadium, chromium, cobalt, cadmium, thallium and lead in urine by inductively coupled plasma mass spectrometry (ICP-MS). Methods according to GBZ/T 210.5 < Occupational Health Standard formulation Guide part 5: determination method of Chemical substances in Biomaterials > Standard urine samples diluted 20 times with 1.0% nitric acid, the standard mode and collision reaction cell mode of inductively coupled plasma mass spectrometer (ICP-MS) were used, and the quantitative calculation was carried out by standard curve internal standard correction method. Results the linear relationship of the six metal elements was good in the range of determination, the correlation coefficient was 鈮，

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