Direct AAS determination of trace copper in water as copper(II)-N,N-diethyldithiocarbamate complex on membrane filter.
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- MORITA Yukitoki
- Department of Industrial Chemistry,College of Science and Technology,Nihon University
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- YOSHIKAWA Masafumi
- Department of Industrial Chemistry,College of Science and Technology,Nihon University
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- ISOZAKI Akinori
- Department of Industrial Chemistry,College of Science and Technology,Nihon University
Bibliographic Information
- Other Title
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- 銅(II)‐N,N‐ジエチルジチオカルバメート錯体のメンブランフィルター捕集/直接導入黒鉛炉原子吸光法による微量銅の定量
- ドウ 2 N N ジエチルジチオカルバメート サクタイ ノ メンブラン フィ
- 銅(II)-N, N-ジエチルジチオカルバメート錯体のメンブランフィルター捕集/直接導入黒鉛炉原子吸光法による微量銅の定量
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Description
A simple method is investigated for direct determination of trace copper in water by graphite furnace AAS: the copper(II)-N, N-diethyldithiocarbamate (DDTC) complex is collected on a membrane filter, a portion of which is then directly transferred to a graphite furnace. The analytical procedure is as follows : 5ml of 2% diammonium hydrogen citrate and 2ml of 0.5% DDTC are added to a 250 ml sample solution (pH 9), containing less than 0.60ng/ml of copper(II). After about 10 min, copper(II)is quantitatively collected on a cellulose-acetate membrane filter (diam.: 17.2mm, pore size : 0.45μm)by suction filtration. For direct AAS determination, a small disc (diam.: 2.0mm)is removed from the membrane filter with a paper punch and introduced into a graphite furnace. The optimal thermal programs are as follows : drying at 160°C for 60 s, ashing at 600°C for 30 s, atomization at 2600°C for 5 s in argon gas atmosphere (flow rate 2.0l/min). The 324.8nm line was used to quantity copper by the peak-area method with deuterium lamp-background correction. The relative standard deviation [for the determination of 2.44ng/ml copper in spring water] was 4.0% for 6 replicate measurements.
Journal
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- BUNSEKI KAGAKU
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BUNSEKI KAGAKU 45 (10), 909-914, 1996
The Japan Society for Analytical Chemistry
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Keywords
Details 詳細情報について
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- CRID
- 1390001204052117632
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- NII Article ID
- 110002907291
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- NII Book ID
- AN00222633
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- NDL BIB ID
- 4056988
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- ISSN
- 05251931
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed