美国Aviv Biomedical
美国Aviv公司是世界知名的研究级圆二色光谱仪生产商，其圆二色光谱仪为美国各大著名高校和研究机构广泛使用。
Aviv公司的最新型号Model400型圆二色光谱仪记录以波长、时间、温度、pH值和浓度为函数的圆二色光谱。光测弹性调制器产生右圆偏振光和左圆偏振光。该套设备包括在Windows操作系统下的控制软件，数据采集、处理和表示的软件。所有的实验参数通过下拉菜单输入，通过控制面板可轻松输入所有的数据采集参数。
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.