Abstract − Analytical Sciences, 15(7), 689 (1999).
Highly Sensitive Determination of Paraquat and Diquat in Human Blood with Tetrabromophenolphthalein Ethyl Ester by Ion-Pair Extraction/Spectrophotometric Method
Kyoko KATO*, Haruki OKADA**, Hisanori IMURA* and Kousaburo OHASHI**
*Environmental Sciences, Faculty of Sciences, Ibaraki University, Bunkyo, Mito 310-8512, Japan
**Scientific Investigation Lab., Ibaraki Pref. Police H. Q., Sannomaru, Mito 310, Japan
**Scientific Investigation Lab., Ibaraki Pref. Police H. Q., Sannomaru, Mito 310, Japan
Keywords Paraquat, diquat, extraction, absorption spectrophotometry, high sensitivity, human blood, tetrabromophenolphthalein ethyl ester, preliminary screening
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