Trimethylphenylammonium Iodide as a Quantitative Precipitant for Gold.

Abstract

at the rate of 24-200 mass units in 0.13 second, resolution is poor and signal clipping is excessive.The illustrated mass spectra were obtained with an instrument equipped with an electron multiplier so that limitations imposed by time constants were primarily in the recording galvanometers. Frequency response of 1000-2000 c.p.s. is satisfactory for mass spectral scans to 300 mass units at resolution of 300-400. If an electron

Potentiometric Titrations

“…They concluded that the inflection point always precedes the equivalence point in strong acid-base titrations. The relative error would be difficult to detect since it is calculated to be -1.6 X 10~13 with 13/ reagents. In the case of weak acid-strong base titrations they found that the inclusion of dilution shows that the inflection point near the mid-point of the titration is concentration dependent and does not occur at 50% titration unless pKa = y2 pKw.…”