环境与健康杂志
環境與健康雜誌
배경여건강잡지
JOURNAL OF ENVIRONMENT AND HEALTH
2004年
5期
339-341
,共3页
刘建荣%董兵%郑星泉%姚孝元
劉建榮%董兵%鄭星泉%姚孝元
류건영%동병%정성천%요효원
牙膏%金属,重%原子吸收法
牙膏%金屬,重%原子吸收法
아고%금속,중%원자흡수법
目的探讨牙膏中铅、镉、铜、锌、锶同时测定的原子吸收法.方法样品采用硝酸-过氧化氢浸提,用石墨炉原子吸收法测定牙膏中铅、镉、铜、锶含量,用火焰原子吸收法测定牙膏中锌含量.结果铅、镉、铜、锌和锶的原子吸收测定法的线性范围分别为0.012 5～0.0500,0.0040～0.0160,0.050～0.200,0.5～2.0,0.025～0.075μg/ml;相关系数分别为:0.994 6,0.993 9,0.999 3,0.995 8,0.999 2;检出限分别为0.234、0.204、0.078、0.348、0.048μg/g;回收率分别为81.3%和90.2%,73.4%和88.9%,89.6%和93%,93.1%和105%,104%和111%;RSD为3.50%～9.08%.结论该方法简便,灵敏度、精密度、准确度较好,适合对牙膏样品进行多元素分析.
目的探討牙膏中鉛、鎘、銅、鋅、鍶同時測定的原子吸收法.方法樣品採用硝痠-過氧化氫浸提,用石墨爐原子吸收法測定牙膏中鉛、鎘、銅、鍶含量,用火燄原子吸收法測定牙膏中鋅含量.結果鉛、鎘、銅、鋅和鍶的原子吸收測定法的線性範圍分彆為0.012 5～0.0500,0.0040～0.0160,0.050～0.200,0.5～2.0,0.025～0.075μg/ml;相關繫數分彆為:0.994 6,0.993 9,0.999 3,0.995 8,0.999 2;檢齣限分彆為0.234、0.204、0.078、0.348、0.048μg/g;迴收率分彆為81.3%和90.2%,73.4%和88.9%,89.6%和93%,93.1%和105%,104%和111%;RSD為3.50%～9.08%.結論該方法簡便,靈敏度、精密度、準確度較好,適閤對牙膏樣品進行多元素分析.
목적탐토아고중연、력、동、자、송동시측정적원자흡수법.방법양품채용초산-과양화경침제,용석묵로원자흡수법측정아고중연、력、동、송함량,용화염원자흡수법측정아고중자함량.결과연、력、동、자화송적원자흡수측정법적선성범위분별위0.012 5～0.0500,0.0040～0.0160,0.050～0.200,0.5～2.0,0.025～0.075μg/ml;상관계수분별위:0.994 6,0.993 9,0.999 3,0.995 8,0.999 2;검출한분별위0.234、0.204、0.078、0.348、0.048μg/g;회수솔분별위81.3%화90.2%,73.4%화88.9%,89.6%화93%,93.1%화105%,104%화111%;RSD위3.50%～9.08%.결론해방법간편,령민도、정밀도、준학도교호,괄합대아고양품진행다원소분석.
