【摘要】 建立了微型镉柱还原法间接测定血清中一氧化氮的新方法。本方法还原硝酸根所需时间短，还原率达９５％以上，用于测定混合血清中一氧化氮。检测范围为０～１０００μｍｏｌ／Ｌ，相对标准偏差为１．７０％～２．４９％，对ＮＯ－３的回收率为９５．８％～１０４．０％，对ＮＯ－２的回收率为９３．６％～９６．８％。更多还原

【Abstract】 A new method for the determination of nitric oxide in serum was established.Nitrate was reduced to nitrite by a microcolumn of cadmium,the nitrite was determined by diazotization method. Very short time was needed for the reduction .Maximum reducing rate is 97.4% .The linear range of determination is 0～1000μmol/L ,the RSD S are 1.7%～2.99%,the recoveries are 95.8%～104.0% and 93.6%～96.8% for NO - 3 and NO - 2 respectively.更多还原