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Improved assay protocol for measurement of ammonia on the Roche Cobas 8000 automated platform

机译:在Roche Cobas 8000自动化平台上改进的用于测定氨的测定规程

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摘要

IntroductionAmmonia is a metabolite of protein catabolism that, when elevated, may be toxic for tissues, especially for the central nervous system. Elevated ammonia in blood is an indicator and a prognostic factor for hepatic and kidney disease or inherited metabolic disorders in nitrogen metabolism. The accuracy of ammonia determination is influenced by sampling condition, handling, storage and assay itself. Our and other laboratories have been experiencing high frequencies sample error flags while measuring ammonia with glutamate dehydrogenase method on Roche Cobas 8000 platform. To reduce the number of error flags we adapted Roche NH3L protocol by incorporation of an additional onboard routine step for sample pre-dilution.
机译:简介氨是蛋白质分解代谢的代谢产物,当升高时,对组织,特别是对中枢神经系统可能有毒。血液中氨含量升高是肝,肾疾病或氮代谢中遗传性代谢异常的指标和预后因素。氨气测定的准确性受采样条件,处理,存储和测定本身的影响。我们的实验室和其他实验室在使用Roche Cobas 8000平台上的谷氨酸脱氢酶方法测量氨气时一直遇到高频样品错误标志。为了减少错误标志的数量,我们通过并入一个额外的机载常规步骤进行样品预稀释来适应Roche NH3L协议。

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