Analytical studies on pyrimidine derivatives. V. Simple and rapid spectrophotometric determination of silver (I) with 5-p-dimethylaminobenzylidene-2-thiobarbituric acid.
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The spectrophotometric determination of silver (I) with 5-p-dimethylaminobenzylidene-2-thiobarbituric acid (DABTB) was studied and two simple and rapid methods are proposed. One is based on photometry of the DABTB-Ag (I) complex in ethanol-buffer (pH 6) solution (method A), and the other is based on measurement of the decrease in absorbance of DABTB due to the complex formation (method B). Beer's law holds over the range of 0.04-2 μg/ml of silver (I) at 400 nm in method A, and 0-35 μg of silver (I) at 484 nm in method B. The molar extinction coefficient of the complex is 2.5×104·1·mol-1·cm-1 in method A. Hg (I, II), Au (III), Pd (II), Pt (IV), and various anions such as Br-, Cl-, I-, SCN-, CN-, S2O32-, and S2- interfered with the determination. These methods were successfully applied to the determination of silver (I) in commercial preparations such as silver nitrate eye lotion and silver protein.
収録刊行物
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- CHEMICAL & PHARMACEUTICAL BULLETIN
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CHEMICAL & PHARMACEUTICAL BULLETIN 28 (8), 2518-2522, 1980
公益社団法人 日本薬学会
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詳細情報 詳細情報について
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- CRID
- 1390001204166168192
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- NII論文ID
- 110003624056
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- NII書誌ID
- AA00602100
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- COI
- 1:CAS:528:DyaL3MXjs1Cntw%3D%3D
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- ISSN
- 13475223
- 00092363
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- PubMed
- 7428131
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可