日本GL Sciences 
GL Sciences 是与岛津齐名的分析仪器公司，总部在日本东京，拥有东京、大阪、福岛等多个研发与生产基地。
GL 产品包括通用分析仪器（气相色谱、液相色谱等），环境分析仪器，
其著名产品MSTD258(Multipurpose Sampling Thermal Desorption 多功能热脱附自动进样系统),是日本半导体行业标准方法所认定的分析仪器。

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.