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日本GL Sciences 
GL Sciences 是與島津齊名的分析儀器公司，總部在日本東京，擁有東京、大阪、福島等多個研發與生產基地。
GL 產品包括通用分析儀器（氣相色譜、液相色譜等），環境分析儀器，
其著名產品MSTD258(Multipurpose Sampling Thermal Desorption 多功能熱脫附自動進樣系統),是日本半導體行業標準方法所認定的分析儀器。

GL Sciences Inc.. The Group's principal activities are to manufacture and market analyzing equipment, semiconductor related products, non-contact IC cards and industrial heating equipment. Analyzing equipment includes gas chromatographs, liquid chromatographs, gas refining equipment, spectrophotometer cells, filling agents, as well as other supplies and gas piping works. Semiconductor related products include quartz jigs and materials for semiconductor. Other activities include the sale of purchased products, related research and development and other services. The operations are carried out through the following divisions: Analyzing equipments; Semiconductors and Non-contact IC cards.