茶叶中铬，镉，汞，砷及氟化物限量。
Residue limits for chromium, cadmium, mercury, arsenic and fluoride in tea.
在文中还提出了用氟化铵，邻菲啰啉作为镍、钴、镁等离子的掩蔽剂，制定了不经分离快速测定空气中微量镉的新方法。
We have, moreover, proposed a new method TB determine cadmium in air, without separating Cd from its accompanying elements, with ammonium fluoride and phenanthroline as masking re...
在文中还提出了用氟化铵，邻菲啰啉作为镍、钴、镁等离子的掩蔽剂，制定了不经分离快速测定空气中微量镉的新方法。
We have, moreover, proposed a new method tb determine cadmium in air, without separating Cd from its accompanying elements, with ammonium fluoride and phenanthroline as masking reagents…
在文中还提出了用氟化铵，邻菲啰啉作为镍、钴、镁等离子的掩蔽剂，制定了不经分离快速测定空气中微量镉的新方法。
We have, moreover, proposed a new method tb determine cadmium in air, without separating Cd from its accompanying elements, with ammonium fluoride and phenanthroline as masking reagents…
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