Hydride generators can be used to measure arsenic (As), antimony (Sb) and antimony (Ge). ), 碲 (Te) and other elements. The general sensitivity is ng/ml (10-9), and the relative standard deviation is about 2%. Mercury (Hg) can be determined by cold atomic absorption.
Graphite furnace atomic absorption spectrophotometer can measure nearly 50 elements. Graphite furnace method, the injection volume is small, the sensitivity is high, and some elements can also be analyzed to the pg/mL level.