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A new approach for the determination of major elemental ratios in organic compounds by using laser-induced plasma spectroscopy (LIPS) was investigated. LIPS has been a well-known technique for qualitative and quantitative analysis for trace metals; however, there has been little research done on non-metal elements. The main elements, including C, H, O and N, were investigated using commercially available solid organic powders. A helium or argon gas environment was used to eliminate interference from air. Linear responses were obtained from these elements with precision and accuracy of 2–3%.
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Tran et al. (2001) studied this question.
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