島津評論 69〔1・2〕 31～37 (2012.9)
To improve the productivity and quality of agricultural resources, science and technology has played a vital role. Pesticides and agrochemicals have been extensively used to cater for the increasing requirement of food production all over the world. At later stage, these have become a concern regarding the effect on human health and for control of usage of these synthetic chemicals. To control the usage of synthetic chemicals and maintain the quality of food so that it is not harmful for human beings, all leading countries like USA, UK, JAPAN, etc.,established strict regulations, which were established by governing bodies like WHO, HACCP, FAO, FDA, etc.
These regulations, in turn ask for stringent quality checks with respect to the presence and quantitation ofpesticides and synthetic chemicals in foodstuffs.
Though regulatory bodies have set a general methodology for testing food, which will guide the manufacturer or supplier in establishing quality control systems, to confi rm the presence of and to evaluate the exact levels of pesticides, allergens, and hazardous chemicals has been a challenging task. By enhancing present technology and through innovations, regulatory bodies have been trying to serve society by contributing to the supply of safe and good quality food.
The main hurdle during detection and quantitation of toxic elements in natural products is their own matrix.
As natural products are multi-component systems, analysts face a lot of interference which makes it diffi cult to achieve perfect confirmation and to achieve low detection or quantitation limits. Multi-Dimensional Gas Chromatography hyphenated with Mass Spectrometry proved to be a very good tool in reducing the matrix interference and achieving better confi rmation and lower detection limits. The ability of using multi-detectors and two columns in a single run helps in achieving high throughput. The present article focuses on different functionalities provided by Shimadzu's Multi-Dimensional Gas Chromatograph Mass Spectrometer（MDGCMS）and guidelines, which will help readers to achieve various goals in quality control of natural products and foodstuffs.
Keywords : Multi-dimensional gas chromatography mass spectrometry, MDGCMS, GCMS, Food safety analysis, Pesticide analysis, Heart-cut technique, Lemon oil
1Customer Support Center, Shimadzu Analytical（India）Pvt. Ltd., Andheri, Mumbai, India