Spectrophotometric Determination of Residual Chlorine in Tap Water Using Alternative Simultaneous Injection/Effective Mixing Analysis System
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- ANDO Shima
- Department of Applied Chemistry, Aichi Institute of Technology
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- TESHIMA Norio
- Department of Applied Chemistry, Aichi Institute of Technology
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- SAKAI Tadao
- Department of Applied Chemistry, Aichi Institute of Technology
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- MOTOMIZU Shoji
- Department of Applied Chemistry, Aichi Institute of Technology
Bibliographic Information
- Other Title
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- 新規な同時注入/迅速混合流れ分析法による残留塩素の定量
- シンキ ナ ドウジ チュウニュウ/ジンソク コンゴウナガレ ブンセキホウ ニ ヨル ザンリュウ エンソ ノ テイリョウ
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Abstract
An alternative simultaneous injection-effective mixing analysis system controlled by a personal computer was proposed for the determination of residual chlorine. This system consists of a sequential injection mode (SI), a multi-commutation mode (MC) and a flow injection mode (FI). Chlorine reacts with 4,4'-bis-dimethylaminothiobenzophenon dissolved in Triton X-100, 2-methoxyethanol and formic acid/fomate buffer to form a blue compound (λmax, 640 nm). The calibration graph was linear in the range of 0–1.68 mg L−1 chlorine and the regression coefficient was 0.999. The RSD for 0.56 mg L−1 chlorine (n = 5) was 0.37% and the repeatability was excellent. The sampling rate for one analysis was 41 s. This method is less reagent consuming and the sensitivity is excellent. This method is applicable to the determination of residual chlorine in tap water.
Journal
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- BUNSEKI KAGAKU
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BUNSEKI KAGAKU 61 (2), 115-121, 2012
The Japan Society for Analytical Chemistry
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Details 詳細情報について
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- CRID
- 1390001204660645248
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- NII Article ID
- 10030135090
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- NII Book ID
- AN00222633
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- COI
- 1:CAS:528:DC%2BC38XktlSgsrg%3D
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- NDL BIB ID
- 023517020
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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
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed