摘要
建立了反相离子对液相色谱法分离和测定小麦粉中的溴酸钾的方法。使用SymmetryshieldTMRP18色谱柱,以甲醇:4mmol/L柠檬酸+2mmol/L十六烷基三甲基溴化铵水溶液=48:52(V/V)为流动相,在220nm波长下检测。线性范围为:3.0～96.0mg/L,方法检出限为1.0mg/kg,方法回收率在89.7%～103.6%。
A method of potassium determination bromate in wheat flour is described. The separation and determination were based on a Symmetry shieldTM RP18 column with UV detecter at 220 nm and methanol： liquid（48：52）of 0.004mol/L citric acid at 0.002mol/L hexadecyl- -trimethylammonium bromide as mobile phase. The calibration curve is linear in the range of 3.0-96.0mg/L and the detection limit is 0.1 mg/kg, while the recovery is 89.7%- 103.6%.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2007年第1期270-273,共4页
Food Science
