The preparation of pure pyridinium dichromate is described.
2
吡啶可以和卤素、 硝基四氟化硼盐、 三氧化硫、 硼烷及三氧化铬反应，形成一些有用的有机试剂。
Pyridine can react with halogens, nitronium fluoroborate, sulfur trioxide, boranes and chromium trioxide to form some useful organic reagents which are introduced briefly in the paper.
3
目的建立保健食品中吡啶甲酸铬含量的测定方法，验证吡啶甲酸铬的稳定性。
Objective To develop a method for determining the content of chromium picolinate in sanitarian food and to validate its stability.
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