摘要
采用盐酸溶液（１６．４ｍＬ稀盐酸→１０００ｍＬ）为溶出介质可获得较ｐＨ５．０醋酸钠缓冲液更好的溶出结果．用硫酸显色法在４８２ｎｍ波长处测定，吸收度值重现性好，结果稳定．线性范围１０～１００μｇ／ｍＬ，ｒ＝０．９９９７（ｎ＝６）；按测定浓度的８０％，１００％和１２０％的平均回收率分别为１００．９％，１００．９％和９９．３％，ＲＳＤ分别为０．２５％，０．６５％和０．３３％（ｎ＝６）．
The better dissolution results were obtained by use of Hyd rochlorid solution (16.4?mL thin Hydrochloride→1?000?mL) as dissolution medi um compared with pH5.0 sodium acetate buffer solution.Absorb values determined b y sulfuric acid colored method at the wavelength of 482?nm show good repeatabil ity and steady results.The linearity was in the range of 10 100?μg/mL,r=0.999 ?7 (n=6);the average recoveries of 80%,100% and 120% of test concentration were respectively 100.9%,100.9% and 99.3%,the RSDs were 0.25%,0.65% and 0.33%,respec tively (n=6).
出处
《云南大学学报（自然科学版）》
CAS
CSCD
1999年第3期233-235,共3页
Journal of Yunnan University(Natural Sciences Edition)
