| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: method involves preparation of a sorbent, cadmium (II) solution, extraction of cadmium (II) from the solution using the sorbent and conversion thereof to a complex compound on the surface of the sorbent, separation of the sorbent from the solution, measurement of luminescence intensity of the cadmium (II) surface complex and determination of cadmium content from a calibration curve. The sorbent used is silica gel which is successively modified with polyhexamethylene guanidine and 8-oxyquinoline-5-sulphonic acid, and luminescence intensity is recorded at 478 nm. ^ EFFECT: high sensitivity, simpler and faster analysis. ^ 4 ex, 2 tbl |
