Peuchant E, Heches X, Sess D, Clerc M
Department of Biochemistry, Saint-André Hospital, Bordeaux, France.
Clin Chim Acta. 1992 Jan 31;205(1-2):19-30. doi: 10.1016/0009-8981(92)90350-y.
Near-infrared reflectance analysis has been used to determine the qualitative and semi-quantitative composition of urinary calculi. This simple method requires calibration of the most common urinary calculi. Analysis time is short (less than 1 min) and only very small amounts of calculus in powder form (less than 100 micrograms) are required without the use of any reagent. Moreover, when compared to infrared spectroscopy, this method provides sufficient accuracy to identify mixed calculi containing two or three components, and permits semi-quantitative determinations. The speed and simplicity of this technique makes it a powerful method for the routine analysis of urinary calculi in clinical laboratories.
近红外反射分析已被用于确定尿结石的定性和半定量成分。这种简单的方法需要对最常见的尿结石进行校准。分析时间短（不到1分钟），并且无需使用任何试剂，仅需极少量的粉末状结石（不到100微克）。此外，与红外光谱法相比，该方法具有足够的准确性来识别含有两种或三种成分的混合结石，并可进行半定量测定。该技术的速度和简便性使其成为临床实验室中尿结石常规分析的有力方法。
