金属指示剂络黑T在水和醇中均不稳定,故药典收载其粉剂处方。然而,在络合量法测定中,由于加入量的多少不一,致使被测液色泽深浅不同,影响结果的判断,为此,介绍一种络黑T试纸,经使用效果较好,且稳定,便于贮存,现将其制作方法叙述如后。 Metal indicator black black T in water and alcohol are not stable, so Pharmacopoeia contains its powder prescription. However, in the determination of complex amount method, due to the different amount of added, resulting in different depth of color of the liquid under test, affecting the results of the judgment, for this reason, the introduction of a black T test paper, the use of better, and stable , Easy to store, now its production method described as follows.