PROBLEM TO BE SOLVED: To provide a small microchemistry system having high measuring sensitivity and requiring no optical axis matching.;SOLUTION: The microchemistry system 10 comprises a plate member 120 with a flow path filled with a submerged specimen, an optical fiber 100 with a lens, a light source unit 110 for emitting an excitation light and a detection light, and a detector 130. The optical fiber 100 with the lens consists of a refractive index distribution type rod lens 101 and an optical fiber 102 connected at one end to the refractive index distribution type rod lens 101 and connected at the other end to the light source unit 110 and having an FC connector 103 at the middle. The FC connector 103 consists of FC plugs 106, 107 and adapters 108 for fixing the FC plugs 106, 107, respectively. The FC plugs 106, 107 are screwed into the adapters 108, respectively, and joined thereto.;COPYRIGHT: (C)2004,JPO
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