CAJ | 학술논문

建立了食品中亚硫酸盐的离子色谱检测方法. 样品采用40 mmol/L NaOH溶液提取, 甲醛作稳定剂, 经ENVI-Carb活性碳小柱除去提取液中的色素, 石油醚除去提取液中的油脂, 用配有电导检测器的离子色谱仪测定. 以AS9-HC为色谱柱, 流动相为8 mmol/L Na2CO3-2.5 mmol/L NaOH, 亚硫酸盐的残留量在0～6.0 mg/L的范围内线性关系良好, 相关系数为0.9989, 相对标准偏差为1.3%～9.1%, 回收率在88.4%～98.1%之间.
건립료식품중아류산염적리자색보검측방법. 양품채용40 mmol/L NaOH용액제취, 갑철작은정제, 경ENVI-Carb활성탄소주제거제취액중적색소, 석유미제거제취액중적유지, 용배유전도검측기적리자색보의측정. 이AS9-HC위색보주, 류동상위8 mmol/L Na2CO3-2.5 mmol/L NaOH, 아류산염적잔류량재0～6.0 mg/L적범위내선성관계량호, 상관계수위0.9989, 상대표준편차위1.3%～9.1%, 회수솔재88.4%～98.1%지간.
A method for the determination of sulfite in food by ion chromatography has been established. The samples were extracted with 40mmol/L NaOH and reacted with formaldehyde to form hydroxymethyl sulfonic acid. The pigment and fat were removed with ENVI-Carb cartridge and petroleum ether, respectively. Then the derivation, hydroxymethyl sulfonic acid, was determined with ion chromatography equipped with a conductance detector, quantified by an external standard method. In the method AS 9-HC chromatographic column was used and the mobile phase was 8 mmol/L Na2CO3-2.5 mmol/L NaOH. The linear range for sulfite residue is 0～6.0 mg/L with the correlation coefficient of 0.9989, relative standard deviations and recoveries are 1.3%～9.1% and 88.4%～98.1%, respectively. The method is proved to be rapid, accurate and practical.