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美國Aviv Biomedical
美國Aviv公司是世界知名的研究級圓二色光譜儀生產商，其圓二色光譜儀為美國各大著名高校和研究機構廣泛使用。
Aviv公司的最新型號Model400型圓二色光譜儀記錄以波長、時間、溫度、pH值和濃度為函數的圓二色光譜。光測彈性調制器產生右圓偏振光和左圓偏振光。該套設備包括在Windows操作系統下的控制軟件，數據采集、處理和表示的軟件。所有的實驗參數通過下拉菜單輸入，通過控制面板可輕松輸入所有的數據采集參數。
Since 1971, Aviv Biomedical, Inc. has strived to provide the best scientific instruments and support possible. The product line includes several high-end, research grade spectrometers and fluorometers. We also offer a Hematofluorometer for whole blood screening for iron deficiency and lead poisoning. Our specialties include circular dichroism (CD) spectroscopy, fluorescence detection for analytical ultracentrifugation, UV-Vis-IR spectroscopy, and fluorescence spectroscopy. We have successfully introduced a number of innovative technologies. In the field of CD spectroscopy, this includes the first computer user interface, thermoelectric temperature control, simultaneous fluorescence measurements, fluorescence detected circular dichroism, super conducting magnetic CD, multiple automated titration experiments, and macro language. We work closely with our customers to meet their needs and continuously grow with their ideas. We strive to produce unparalleled scientific instruments and service.