水生动物中镉的分析与调查
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- 英文论文题名：Detection of Cd in aquatic anima by Furnace Atomic Absorbtion Spectrophotometry
- 论文作者：毛志瑛
- 英文论文作者：chang zhou environmental monitoring center
- 年：2016
- 作者机构：常州市环境监测中心站;
- 论文关键词：水生动物 ; 镉 ; 石墨炉原子吸收光度法
- 英文论文关键词：aquatic animal ; Cd ; Furnace Atomic Absorbtion spectrophotometry
- 会议召开时间：2016-12-14
- 会议录名称：2016全国水环境污染控制与生态修复技术高级研讨会论文集
- 语种：中文
- 分类号：X835;O657.31
- 学会代码：HJKP
- 会议名称：2016全国水环境污染控制与生态修复技术高级研讨会
- 会议地点：中国云南腾冲
- 主办单位：中国环境科学学会、中国环境科学研究院
- 学会名称：中国环境科学学会
- 页数：3
- 文件大小：828k
- 原文格式：D
- 会议级别：全国
摘要
用硝酸和双氧水对匀浆过的水生动物进行微波消解,用石墨炉原子吸收分光光度法测定水生生物肉体中的镉的含量。首先,对微波消解酸体系和微波程序进行了优化,结果表明:硝酸用量为2.5ml、双氧水用量为2.0ml,逐步升温到190℃,消解28分钟时试剂用量少,消解效果较好;然后用石墨炉原子吸收分光光度仪对几类水生生物中的镉进行测试,方法检出限为0.0025㎎/㎏,测定结果的相对标准偏差为0.023~0.098(n=6),加标回收率为75%~91%,生长期长,生活在水体底部的水生生物中的镉要相对较高。
The paper detailed the method of detecting Cd in homogenate aquatic anima.HNO_3 and H_2O_2 were used for digestion of samples in micro-wave oven, then detection it by Furnace AAs..At first, Optimization the System and program of Microwave digestion,Large numbers of experiment indicated that the mixture of 2.5 ml HNO_3 and 2.0 ml H_2O_2 were found to give a better digestion results towards aquatic animal,The best microwave heating program was that 5 step to top tempera,and keeping 28 minutes at 190℃; The method of Furnace Atomic Absorbtion Spectrophotometry detection limits for Cd were 0.025 mg/kg, relatively deviations of analysis are 0.105%~0.168%((n=6), coefficient of recovery are 75%~91%. Cd in the aquatic anima that grow in bottom water and growing is longer were higher.
The paper detailed the method of detecting Cd in homogenate aquatic anima.HNO_3 and H_2O_2 were used for digestion of samples in micro-wave oven, then detection it by Furnace AAs..At first, Optimization the System and program of Microwave digestion,Large numbers of experiment indicated that the mixture of 2.5 ml HNO_3 and 2.0 ml H_2O_2 were found to give a better digestion results towards aquatic animal,The best microwave heating program was that 5 step to top tempera,and keeping 28 minutes at 190℃; The method of Furnace Atomic Absorbtion Spectrophotometry detection limits for Cd were 0.025 mg/kg, relatively deviations of analysis are 0.105%~0.168%((n=6), coefficient of recovery are 75%~91%. Cd in the aquatic anima that grow in bottom water and growing is longer were higher.
引文
[1]GB/T5009.14-2014《食品中镉的测定第一法石墨炉原子吸收光谱法》
[2]阎军,胡文祥.《分析样品制备》:解放军出版社,2003P23
[3]李梅.《原子吸收分析中的基体改进技术.北京》:北京大学出版社,91 P110 P112
[4]毛志瑛《石墨炉原子吸收法测鱼中的铅》《化学分析计量》2005.5
[5]毛志瑛《原子吸收法测定烟草中的镉》《现代分析仪器》2006.5
[2]阎军,胡文祥.《分析样品制备》:解放军出版社,2003P23
[3]李梅.《原子吸收分析中的基体改进技术.北京》:北京大学出版社,91 P110 P112
[4]毛志瑛《石墨炉原子吸收法测鱼中的铅》《化学分析计量》2005.5
[5]毛志瑛《原子吸收法测定烟草中的镉》《现代分析仪器》2006.5