A determination by
weight; e.g. in the older method of
Cl−
ion determination, a weighed amount of sample is dissolved in water,
AgNO3
solution added,
AgCl
is precipitated, dried and weighed. From the known
mass fraction of silver in
AgCl, the weights of the initial sample and that of the
AgCl
precipitated, the percentage of chlorine in the sample can be calculated readily.
Source:
PAC, 1990, 62, 2167
(Glossary of atmospheric chemistry terms (Recommendations 1990))
on page 2192