摘要
用梯度淋洗离子色谱法测定了糖类,如葡萄糖、果糖、乳糖、棉子糖和麦芽糖。对测定条件、枪测器的施加电压、淋洗液的组成和流速进行了讨论。用两种不同的淋洗液A(1M NaOH)、B(0.15M NaOH)对糖类进行梯度分离,以会电极脉冲安培检测器检测。该法比单淋洗分离测定不仅缩短了测定时间,而且能得到更高的灵敏度,用这种方法测定了黄酒和桔子中的糖类,得到良好的结果。
The conditions such as applied potential, composition and flow rate of eluents for determination of carbohydrates, including glucose, fructose, lactose, sucrose, raffinose and matos, by gradient elution ion chromatography are discussed. Two different eluenst, eluent A(1mol/L NaOH) and eluent B(0.15mol/L NaOH), and a gold electrode pulsed amperometric detector are used. Carbohydrates in wine and tangerines are analyzed. The results show that the gradient elution is more sensitive and needs shorter time than isocratic elution.
出处
《分析仪器》
CAS
1990年第3期43-46,共4页
Analytical Instrumentation
