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High performance liquid chromatographic determination of sodium sulfate in anionic surfactants
Author(s) -
Kudoh Megumu,
Kusuyama Takashi,
Yamaguchi Shinichiro,
Fudano Shintaro
Publication year - 1984
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02672059
Subject(s) - chemistry , chromatography , sulfate , sodium , sulfonate , calibration curve , sodium sulfate , derivatization , alkyl , detection limit , high performance liquid chromatography , organic chemistry
Sodium sulfate is separated from anionic surfactants on a separation column packed with strong anion exchange resin, and is detected by a post column derivatization method based on a chemical reaction between sulfate and ferric ion. A calibration curve shows a linear relationship in the range of 10\s‐300 mg/100 mL for sodium sulfate. The lower limit of determination is 2 mg/100 mL. Anionic surfactants such as sodium alkylbenzene sulfonate and sodium alkyl sulfate do not interfere with the determination. A personal computer was connected to the chromatographic system for data processing and control of an automatic sampler. This personal computer controlled liquid chromatographic system provides good recovery, reproducibility, agreement with conventional methods and full automatic determination.

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