Analysis of di(2-ethylhexyl)phthalate, dichloroacetonitrile and chloral hydrate by GC-MS method using nitrogen carrier gas
MSTips No. 398
Helium (He), which is widely used as a carrier gas for GC, can have problems such as temporary price increases and unstable supply conditions due to various reasons, and when supply delays occur, it is necessary to consider using another type of carrier gas as an alternative. Hydrogen and nitrogen are the main alternative gases being considered, with nitrogen gas being relatively easier to introduce into GC-MS when safety is a priority. In this report, di(2-ethylhexyl)phthalate, dichloroacetonitrile, and chloral hydrate, which are water quality control target items in water quality testing, were measured by the same column using nitrogen carrier gas. (For He, see MSTips No.325.) As a result, good linearity of the calibration curve and reproducibility at the lower limit of quantification were obtained for all compounds, and are presented in this report.