Warwick W J, Hansen L G, Werness M E
University of Minnesota, Minneapolis 55455.
Clin Chem. 1990 Jan;36(1):96-8.
We examined the relation between chloride concentration and the area of complexed chloride of Medtronic's Cystic Fibrosis Indicator System, using a high-resolution x-y coordinated digitizer to measure the circumference of the chloride precipitation ring. These digitized points were entered directly into an IBM PC computer, where the area of the chloride precipitation was calculated with use of a repetitive rectangular estimation program. Using these data, we determined the relationship between the area of chloride precipitation and the chloride concentration of the standard NaCl solutions. When the area of the ring of chloride precipitation in the system's patch is measured immediately after the sweat test is completed, the concentration of chloride in the sweat can be calculated with a reproducibility equal to that of the Gibson-Cooke sweat test.
我们使用高分辨率x-y坐标数字化仪测量氯化物沉淀环的周长，研究了美敦力囊性纤维化指标系统中氯化物浓度与络合氯化物面积之间的关系。这些数字化点直接输入到一台IBM个人计算机中，通过使用重复矩形估计程序计算氯化物沉淀的面积。利用这些数据，我们确定了氯化物沉淀面积与标准氯化钠溶液中氯化物浓度之间的关系。在汗液测试完成后立即测量系统贴片上氯化物沉淀环的面积，就可以计算出汗液中氯化物的浓度，其重现性与吉布森-库克汗液测试相当。
