Abstract
A new application of atomic absorption spectrometry was devised. The titration curves obtained by atomic absorption indirectly gave the micro amounts of chloride in the sample solution. The known amounts of silver nitrate was added to several aliquots of sample solution. The formed silver chloride precipitate was press-filtered through an apparatus using Sartorius membrane filter (MF 10, 0.01 μ) with polypropylene syringe. The excess silver of the filtrate was measured by atomic absorption spectrophotometry. A few micrograms of chlorine in 50 ml solution was accurately determined from the titration curve.
The author called this method the “atomic absorption spectrophotometric titration”.
