2024-07-31 16:45
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高效离子迁移谱
型号: GA2200
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品牌: 越质生物
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Our study demonstrated that the fusion of fingerprints did indeed provide more information and could be used to comprehensively conduct the quality consistency evaluation and discrimination of apple essences from similar products. It is suggested that this fingerprint approach is suitable for analysis of other complex, multianalyte substances.
建立了快速检测白酒中 15 种邻苯二甲酸酯类塑化剂的离子迁移谱法。 对主要参数进行优化,选择源压力 2500 V、迁移管温度为 170 ℃、离子栅门为 90 μs、离子栅门压力为 45 V 时进行测定。 样品简单稀释后进样,30 ms 内即可出峰,1 min 可获得 6 组平行数据,RSD 为 6.5%-10.2%。 利用此方法对 10 种白酒和 5种红酒盲样进行测定,成功筛查出了含有塑化剂的样品,总筛查时间在 30 min 以内,实现了快速检测的需求。
In this work, 115 olive oil samples among the three categories, previously tasted by two Panel Tests, were used as reliable analytical standards to calibrate and validate the chemometric models. The average success rate of classifying samples was 68.9% for validating the ternary model (EVOO, VOO, and LOO). However, the binary model to differentiate between non-defective (EVOO) and defective (VOO and LOO) samples provided a mean classification success rate of 88.3%. In addition, EVOO samples
为了建立快速、准确的白酒品质鉴别方法,利用机器学习方法对不同品质的白酒建模。为了提取不同品质白酒的特征,使用离子迁移谱对不同品质白酒进行分析,构建了基于白酒离子迁移谱信号的特征向量,并对不同品质的白酒进行了识别与分类。