• 如果样品中发现目标溶剂怎么办

    What happens to peaks in sample that are non-target solvent peaks?

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  • 可能的待测组分被完全被包溶剂组分中。

    Possible analytes are completely embedded overlap in solvent peaks.

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  • 然后我们将溶剂作为背景一个部分加以扣除

    Then, the solvent peak is deducted as a part of background.

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  • 文章方法作了理论上分析并给出了用于溶剂抑制时的实验结果,获得良好的效果。

    After theoretical analysis of this method, a good experimental result for strong solvent signal suppression is observed.

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  • 同时提出单糖进行硅醚化反应后适量加水简易后处理方法显著减少色谱测定时溶剂的“拖尾”,消除反应后产生沉淀

    An improved and simplified after-treatment procedure has been developed which serves to significantly reduce the'tailing'of the solvent peak and to eliminate the precipitate produced in the reaction.

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  • 核磁共振通常根据已知溶剂残留质子进行校正而不是添加四甲基硅烷。

    NMR spectra are often calibrated against the known solvent residual proton peak instead of added tetramethylsilane.

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  • 回答:检查某种有机溶剂发现未知(非目标),应基于良好科学技术理念鉴别该,并毒理学协作确定样品该未知成分的可接受限度水平

    If you come up with an unexpected peak while looking for a specific solvent, use good science to identify the peak and work with a toxicologist for the acceptable level in that material.

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  • 如果目标响应解决不好溶剂较大干扰可能影响响应值的准确度精确度

    A large solvent disturbance may affect accuracy and precision of response if it is poorly resolved from the peak of interest.

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  • 升高色谱柱温度不仅可以加快分析速度而且可以改善形,减少有机溶剂使用

    Under the high temperature, not only the analytical time can be shortened, but the peak symmetry can be improved and the use of organic solvent can be decreased as well.

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  • 发现其谱形状不仅溶剂性质而异随浓度

    It is found that the peak shape and peak wavelength change not only with solvent, but also with the concentration.

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  • 系统适用性试验评估溶剂干扰相邻分离和进样精密度

    System suitability tests may evaluate peak shape; separation of themain peak from solvent disturbance and from closely eluting peaks; andinjection precision.

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  • 试样乙醇溶剂时,会导致某些色谱不好。

    When using ethyl alcohol as the solvent of the extract, some chromatographic peak shapes became abnormal.

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  • 结晶现象一些非反应性溶剂处理过的PET试样DSC曲线观察到

    Duplex cold crystal peak was also observed in the DSC of PET by vapour of unactive…

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  • 结晶现象一些非反应性溶剂处理过的PET试样DSC曲线观察到

    Duplex cold crystal peak was also observed in the DSC of PET by vapour of unactive…

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