Schultz S G, Holen J T, Donohue J P, Francoeur T A
Clin Chem. 1985 Sep;31(9):1457-63.
We have developed a new system for clinical chemistry analysis, the Vision System, in which centrifugal force is used to separate whole blood, measure reagent and plasma volumes, and complete all steps required for a spectrophotometric analysis. The system is based on use of a multichambered plastic test pack containing liquid reagents, which can be centrifuged at 500 X g in two planes, oriented at right angles to each other. Alternating centrifugal fields allows liquid reagents and plasma to flow into highly precise measuring and mixing chambers. A unique flash lamp and diode array spectrometer provide for optical measurements of 10 test packs at as many as eight wavelengths simultaneously. The temperature of each individual test pack is controlled by using a flash lamp coupled to a liquid crystal temperature sensor. Microprocessor control allows as many as 10 different chemistry reactions to be measured simultaneously on whole-blood, plasma, or serum samples. Comparison with results by an established batch-photometric analyzer demonstrated excellent precision and accuracy for various clinical chemistry tests.
我们开发了一种用于临床化学分析的新系统——视觉系统，该系统利用离心力分离全血、测量试剂和血浆体积，并完成分光光度分析所需的所有步骤。该系统基于使用一种含有液体试剂的多腔塑料测试包，该测试包可在两个相互垂直的平面上以500×g的离心力进行离心。交替的离心场使液体试剂和血浆流入高精度的测量和混合腔室。独特的闪光灯和二极管阵列光谱仪可同时在多达八个波长下对10个测试包进行光学测量。每个单独测试包的温度通过与液晶温度传感器相连的闪光灯进行控制。微处理器控制可同时对全血、血浆或血清样本进行多达10种不同的化学反应测量。与已建立的批量光度分析仪的结果进行比较，结果表明该系统在各种临床化学测试中具有出色的精密度和准确性。
