Analysis of Residual Pesticides in Foods Using Twin Line GC-MS

To obtain highly reliable data from analyzing residual pesticides in foods by GC requires confirmation tests using columns with different liquid phases. In contrast, with GC-MS, confirmation is possible by using not only retention times, but also m/z values. Therefore, normally only one type of column is used for tests. However, due to the increased number of pesticides and the diversification in substances subject to inspection, users are demanding higher reliability by using columns with different liquid phases, even for GC-MS analysis.Therefore, a Twin Line MS Kit, which enables the installation of two types of columns with different liquid phases in one MS, without the use of splitters or flow restrictors, was used to analyze residual pesticides in food.