Simultaneous determination of binary solution of triphenylmethane dyes in complex matrices onto magnetic amino-rich SWCNT using second-order calibration method

Author(s):  
Mehrnoosh Bayat ◽  
Farzaneh Shemirani ◽  
Jahan B Ghasemi
2018 ◽  
Vol 10 (12) ◽  
pp. 1459-1471 ◽  
Author(s):  
Xiao-Dong Sun ◽  
Hai-Long Wu ◽  
Zhi Liu ◽  
Li-Xia Xie ◽  
Yong Hu ◽  
...  

Simultaneous determination of estrogens in infant milk powder using a second-order calibration method coupled with LC-MS operated in full scan mode.


2016 ◽  
Vol 8 (24) ◽  
pp. 4941-4948 ◽  
Author(s):  
Li Zhu ◽  
Hai-Long Wu ◽  
Li-Xia Xie ◽  
Huan Fang ◽  
Shou-Xia Xiang ◽  
...  

Simultaneous determination of arbutin and hydroquinone in cosmetic products using a second-order calibration method coupled with excitation–emission matrix fluorescence.


2012 ◽  
Vol 554-556 ◽  
pp. 1781-1784
Author(s):  
Jian Qi Sun ◽  
De Si Sun ◽  
Hao Chen

The overlapped chromatograms and spectra of sulfadiazine (SD) and sulfamethoxazole (SM) in both synthetic samples and pharmaceutical tablets even in the presence of uncalibrated and interfering sulfanilamide (SN) were resolved by HPLC-DAD combined with a novel second-order calibration method. Their elution time was set from1.077 min to 1.624 min and the detection wavelength was chosen from 230 nm to 316 nm. The recoveries of SD and SM were (99.3 ± 1.3)% and (99.2 ± 3.1)%, respectively. The satisfying results show this method can be easily performed and applied to solving second-order calibration problems quickly and accurately.


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