意大利GNR公司是一家专业的光谱分析仪器研发、制造企业，成立于1942年，总部位于意大利米兰。GNR横跨半个多世纪的历史几乎与现代光谱仪发展史完全重合，从早期的摄谱仪到电子管光谱仪、从引入电脑技术的直读光谱仪到现代CCD直读光谱仪、从落地式X射线荧光光谱仪到手持式X射线荧光光谱仪。GNR公司的发展史就是一部浓缩的光谱仪发展史，当代的GNR公司在直读光谱仪、X射线荧光光谱仪、油料光谱仪等领域继续开创着新的技术。
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GNR Analytical Instruments s.r.l. is an Italy specialized optical analytical instruments company. Oriented at 1942 in Milano, GNR s.r.l. step across over half century and almost covering the modern optical instruments history. GNR come from early photography spectrometer to electronic tube spectrometer, from direct-reading spectrometer applying computer technology to state-of-art CCD spectrometer, from stationary XRF to handheld XRF. GNR history is a concentrated optical spectrometer history. GNR today is a leading company focus on Spark-OES, XRF and Rotroil.