scholarly journals QSRP Prediction of Retention Times of Chlorogenic Acids in Coffee by Bioplastic Evolution

2017 ◽  
Author(s):  
Francisco Torrens ◽  
Gloria Castellano
Keyword(s):  
Chlorogenic Acids ◽  
Prediction Of Retention ◽  
Prediction Of Retention Times

Mutual Prediction of Retention Times in a Variety of Operating Modes in Temperature Programmed Gas Chromatography

2017 ◽  
Vol 14 (1) ◽  
pp. 591-597
Author(s):  
Xinglong Zhang ◽  
Li Ze ◽  
Zhengchun Yang ◽  
Ruoxin Wu ◽  
Cairong Gong ◽  
...  
Keyword(s):  
Constant Pressure ◽  
The Other ◽  
Flow Mode ◽  
Constant Flow ◽  
Operating Modes ◽  
Prediction Of Retention ◽  
Novel Method ◽  
Temperature Programmed ◽  
Relative Errors ◽  
Prediction Of Retention Times

In this paper, a new concept of calibration hold-up time was defined. On the basis of the concept, a novel method was proposed to predict retention times in temperature programmed (isothermal) under constant flow and constant pressure mode each other, and the method also researched in simultaneous pressure and temperature programmed. The prediction results show that average relative errors are 1.33% (0.64%) in temperature programmed (isothermal) under constant pressure mode by using isothermal dates in constant flow mode, and the other way around, average relative errors are 0.62% (−0.62%). For simultaneous pressure and temperature programmed, retention times were predicted by using isothermal dates in constant flow and constant pressure mode, average relative errors are −0.24% and −0.16%; and retention times were predicted by using isothermal dates directly, average relative errors are −0.62%.

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