研究了流动相的选择,梯度淋洗程序的最佳化以及进样浓度与峰高的线性关系。
The selection of moving phase, gradient eluting procedure and line relation of sampling concentration with peak height were discussed.
对样品生物胺的提取、净化、衍生方法、流动相的选择以及不同食品中的生物胺种类及含量做了深入的探讨。
The methods of extraction, purification and derivation of food samples, the selection of phase and determination of the biogenic amines in different foods are discussed.
对样品生物胺的提取、净化、衍生方法、流动相的选择以及不同食品中的生物胺种类及含量做了深入的探讨。
In this paper the research progresses on determination of biogenic amines in food by RP-HPLC are reviewed. The methods of extraction, purification and derivation of food samples, the select...
讨论了检测波长的选择和样品的制备,优化了流动相的组成。
The detection wavelength, sample preparation and the optimization of mobile phase constitution were discussed.
讨论了流动相及内标的选择,进样量和空白基质的影响等。
The main factors, including the selection of mobile phase and internal reference materials and effects of inject ion volume and matrix were investigated.
方法:选择相同的流动相和检测波长,采用适当的沉淀剂,对四种添加剂的检测条件进行了优化。
Method: Same mobile phase and detection wavelength were selected and suitable precipitating agent was used. The HPLC conditions were optimized.
通过选择不同结构、不同碳数的醇做流动相的极性改性剂,优化了色谱分离结果。
The chromatographic conditions were optimized using different alcohols as mobile phase modifier. The effect of temperature on chiral separation was investigated.
结果显示,选择合适的流动相,使用丙酮、乙醇或异丙醇为提取剂可以获得较好的提取效果。
The results showed that if appropriate mobile phase was chosen, the adoption of acetone, ethanol and isopropyl alcohol as organic agents for melamine extraction could also got good results.
通过填料的选择、气液流动状态的比较和反应器长径比的考察,探讨了管式填料反应器中乙醛液相氧化合成过氧乙酸的新工艺。
The structure properties of tube reactor for production of DAP by means of concentration AP slurry with secondary ammoniation are investigated on experimental equipment.
通过填料的选择、气液流动状态的比较和反应器长径比的考察,探讨了管式填料反应器中乙醛液相氧化合成过氧乙酸的新工艺。
The structure properties of tube reactor for production of DAP by means of concentration AP slurry with secondary ammoniation are investigated on experimental equipment.
应用推荐