Ultra-sensitive HPLC-photochemical reaction-luminol chemiluminescence method for the measurement of secondary amines after nitrosation

2017 ◽  
Vol 952 ◽  
pp. 50-58 ◽  
Author(s):  
Hitoshi Kodamatani ◽  
Yoshimi Iwaya ◽  
Makoto Saga ◽  
Keiitsu Saito ◽  
Takahiro Fujioka ◽  
...  
2009 ◽  
Vol 92 (3) ◽  
pp. 914-918 ◽  
Author(s):  
Aifang Li ◽  
Xiaoyu Liu ◽  
Juan Kong ◽  
Haoyu Hu ◽  
Linghui Sun ◽  
...  

Abstract A novel chemiluminescence method has been developed for the determination of the organophosphorous pesticide phosphamidon in environmental water samples, based on the reaction of phosphamidon with luminolH2O2 in an alkaline medium using sodium dodecyl benzene sulfonate as the enhancer. Under optimum conditions, the increased chemiluminescence intensity was proportional to the concentration of phosphamidon in the range of 0.011.0 g/mL and the detection limit was 0.0038 g/mL (3). The relative standard deviation was <2 for 0.5 g/mL phosphamidon (n = 11). The proposed method was applied to the determination of phosphamidon residue in an environmental water sample with satisfactory results. Further study was focused on the mechanism of phosphamidon, and a possible mechanism was proposed.


2007 ◽  
Vol 61 (7) ◽  
pp. 706-710 ◽  
Author(s):  
Xiaofeng Xie ◽  
Xili He ◽  
Zhenghua Song

A novel chemiluminescence method combined with the flow injection technique for the determination of carbon monoxide is presented in this paper. The chemiluminescence signal based on the reaction between myoglobin and luminol in an alkaline medium was remarkably enhanced by carbon monoxide. The enhanced chemiluminescence intensity was linear with carbon monoxide concentration in the range from 0.01 to 10.0 pmol·L−1, and the detection limit was 3 × 10−3 pmol·L−1 (3σ). The whole process, including sampling and washing, could be completed in 0.5 min with a relative standard deviation of less than 4.0%. The proposed method was applied successfully in the assay of carbon monoxide in human serum and artificial water samples without any pretreatment procedure.


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