摘要
在 ＨＡｃ－ＮａＡｃ（ ｐＨ ４． ７６）底液中，用单扫示波极谱法可以得到一个灵敏的美洛昔康二阶导数还原峰，其峰电位Ｅｐ＝－ １．２８ Ｖ（ｕｓ ＳＣＥ）。峰电流与美洛昔康浓度在 ９．０×１０－８～６．０ × １０－６ｍｏｌ／Ｌ范围内呈线性关系（ ｒ＝ ０．９９９４），检出限为 ３．０ × １０－８ｍｏｌ／Ｌ。该法应用于片剂中美洛昔康含量的测定，结果令人满意。
In a supporting electrolyte containing HAc-NaAc at pH 4. 76, a sensitive 2nd-older derivative reduction peak of meloxicam (MLX) was found by sidle-sweep oscillopolarography. The peak potential Ep = - 1. 28 V (us. SCE). The relationship between peak current and the concentration of MLX was linear from 9.0 x 10-8 - 6.0 x 10-9 mol/L (r = 0.9994). The detection limit was 3.0 x 10-8 mol/L. The method has been applied to the determination meloxicam an the tablet with satisfactory results.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2000年第12期1501-1503,共3页
Chinese Journal of Analytical Chemistry
