CAJ | 학술논문

为同时测定烟草中硝酸盐和亚硝酸盐，建立了一种离子色谱分析方法。在超声条件下，用水萃取试样中的硝酸盐和亚硝酸盐离子，萃取液经阴离子交换色谱柱分离，用电导检测器检测，外标法定量。结果发现：该方法在测试范围内（亚硝酸盐0.032～1.600 mg/L，硝酸盐0.800～40.000 mg/L）线性良好；硝酸盐的检测限为1.06 mg/kg，回收率在96.3%～99.0%之间，亚硝酸盐的检测限为1.23 mg/kg，回收率在96.1%～101.6%之间；RSD均小于5%。
위동시측정연초중초산염화아초산염，건립료일충리자색보분석방법。재초성조건하，용수췌취시양중적초산염화아초산염리자，췌취액경음리자교환색보주분리，용전도검측기검측，외표법정량。결과발현：해방법재측시범위내（아초산염0.032～1.600 mg/L，초산염0.800～40.000 mg/L）선성량호；초산염적검측한위1.06 mg/kg，회수솔재96.3%～99.0%지간，아초산염적검측한위1.23 mg/kg，회수솔재96.1%～101.6%지간；RSD균소우5%。
A sensitive ion exchange chromatography method was developed for simultaneous determination of nitrate and nitrite in tobacco. Ultrapure water was used for ultrasound-assisted solvent condition. Extract liquor were separated using anion exchange column. Nitrate and nitrite ion were then detected by conductance detector. Results showed that linear relations were observed in the range of 0.032~1.600 mg/L for nitrite,and 0.800~40.000 mg/L for nitrate. Detection limits were 1.06 mg/kg for nitrate and 1.23 mg/kg for nitrite. Recoveries were 96.3%~99.0% for nitrate and 96.1%~101.6% for nitrite. Both RSDs were below 5%.