Simultaneous Determination of Asulam, Thiophanate- Methyl, Siduron, Iprodione by Prominence-i

Introduction

A ministerial ordinance (Ministry of Health, Labour and Welfare Ordinance No. 101) concerning new water quality standards was promulgated in Japan on May 30, 2003, and in conjunction with this ordinance, "complementary parameters for setting water quality management targets (27 items)" were announced on October 10, 2003 via the Ministry of Health, Labor and Welfare; Health Policy Bureau Ordinance No. 1010004. Of these water quality management parameters, 102 pesticides were selected as target components, and 11 of these are specified to be inspected using high-performance liquid chromatography. Further, among these, the "Separate Method 9" pesticide test method has been specified for analysis of four substances, asulam, thiophanate-methyl, siduron, and iprodione, which are widely used as golf course pesticides. Golf courses are often located in upstream river areas, and because of the potential impact on public waters, use of these substances has generated concern, attracting considerable social attention. Here, simultaneous analysis of these four pesticides in a standard sample was conducted in compliance with the "Separate Method 9" using the Prominence-i integrated high-performance liquid chromatograph, and the measurement accuracy and linearity were then evaluated.

January 16, 2015 GMT