西部皮革
西部皮革
서부피혁
WEST LEATHER
2014年
2期
35-38
,共4页
微波消解%ICP-MS%111Cd%114Cd%差异的原因
微波消解%ICP-MS%111Cd%114Cd%差異的原因
미파소해%ICP-MS%111Cd%114Cd%차이적원인
microwave digestion%ICP-MS%111 Cd%114 Cd%the reason for the difference
讲述了用微波消解ICP-MS测定皮革制品中镉含量时，镉的同位素111Cd与114Cd测定结果出现差异的原因：是微波消解时使用了2 mL优级纯的过氧化氢，过氧化氢中锡元素的本底含量高，含300~700 ng/mL，对皮革制品中镉的贡献不一；解决111Cd与114Cd测定结果的差异的方法：微波消解时可不使用过氧化氢，只用硝酸进行微波消解处理。
講述瞭用微波消解ICP-MS測定皮革製品中鎘含量時，鎘的同位素111Cd與114Cd測定結果齣現差異的原因：是微波消解時使用瞭2 mL優級純的過氧化氫，過氧化氫中錫元素的本底含量高，含300~700 ng/mL，對皮革製品中鎘的貢獻不一；解決111Cd與114Cd測定結果的差異的方法：微波消解時可不使用過氧化氫，隻用硝痠進行微波消解處理。
강술료용미파소해ICP-MS측정피혁제품중력함량시，력적동위소111Cd여114Cd측정결과출현차이적원인：시미파소해시사용료2 mL우급순적과양화경，과양화경중석원소적본저함량고，함300~700 ng/mL，대피혁제품중력적공헌불일；해결111Cd여114Cd측정결과적차이적방법：미파소해시가불사용과양화경，지용초산진행미파소해처리。
This paper tells the determination of cadmium content in leather goods by using microwave di-gestion and ICP-MS. Reasons for the difference results between the isotopes of cadmium in 111 and 114 Cd content are guarantee reagent hydrogen peroxide which is used in the microwave digestion. Hydrogen peroxide contains 300-700 ng/mL tin, which increases the background of the curve, and contributes differ-ently to the content of cadmium isotopes in leather products; In order to get same testing result of 111 Cd and 114 Cd content in leather products, no hydrogen peroxide by only nitric acid should be used in mi-crowave digestions.
