随着溶液中金属离子浓度的增大，络合形成常数减小。
It was found that formation constants decrease with the increasing concentration of metal in the solution.
方法本实验用电感藕荷等离子质谱仪（ ICP -MS）定量测定金属离子浓度。
Methods The quantity of elements in the cell culture medium was measured by inductively coupled plasma mass spectrometer (ICP-MS).
将流动注射化学发光法与微透析采样技术联用，测定家兔血液中游离的金属离子浓度。
To couple microdialysis sampling with flow-injection chemiluminescence analysis for real time and on-line detection of concentration of free cr (III) in the blood of rabbit.
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