Eine Methode zur raschen photometrischen oder titrimetrischen Gesamtschwefelbestimmung in biologischem Material

Improved spectrophotometric method for the determination of sulfate with barium chloroanilate as applied to coal ash and related materials

“…sulfate in biological materials (7)(8)(9)(10)(11), glass, silicates (12), oilfield water (13), and oil-well scale (14); and sulfur trioxide in flue gas (15). Most applications of the method are carried out in 50% ethyl alcohol, but other solvent systems such as 50% isopropyl alcohol (13) have been used.…”