More free sulfhydryls and higher sampleconcentration mean that one should consider using higher concentrations of reducing agent.
自由巯基数目越多，样品浓度越高，还原剂的用量就越大。
2
The sampleconcentration and the ratio of elution solution which influence the separation effect of PC and PE were further researched.
考察了进样浓度和洗脱液配比对分离效果的影响。
3
These pumps are widely used for applications including filtration, sampleconcentration, solid phase extraction. They are the important basic instruments in the lab.