Melnicoff M J, Godleski J J, Bercz J P
Res Commun Chem Pathol Pharmacol. 1976 Jun;14(2):377-86.
An automated method of sulfate analysis is described, which can detect sulfate concentrations as low as 2.5 mug per ml water. The assay is based on the reaction of sodium rhodizonate and barium forming a colored complex. Sulfate quantitavely interferes with this reaction. The assay is reproducible in the range of 2.5 to 30 mug sulfate per ml water. This method conveniently and accurately measures water soluble sulfate filtered from the air, and is especially useful in assaying samples containing microgram quantities of sulfate from experimental inhalation apparatus.
本文描述了一种自动化的硫酸盐分析方法，该方法能够检测低至每毫升水2.5微克的硫酸盐浓度。该测定基于玫瑰红酸钠与钡反应形成有色络合物。硫酸盐会定量干扰此反应。该测定在每毫升水2.5至30微克硫酸盐的范围内具有可重复性。此方法能方便且准确地测量从空气中过滤出的水溶性硫酸盐，在分析来自实验吸入装置的含微克量硫酸盐的样品时尤其有用。
