scholarly journals Simultaneous determination of parabens and inorganic anions in cosmetics by a two-dimensional ultrahigh-performance liquid chromatography-ion chromatography valve-switching method

RSC Advances ◽  
2017 ◽  
Vol 7 (52) ◽  
pp. 32769-32776 ◽  
Author(s):  
Feng-Lian Wang ◽  
Yong-Gang Zhao ◽  
Nadeem Muhammad ◽  
Shu-Chao Wu ◽  
Yan Zhu
Keyword(s):  
Simultaneous Determination ◽  
Single Injection ◽  
Inorganic Anions ◽  
Two Dimensional ◽  
Switching System ◽  
System P ◽  
Ultrahigh Performance Liquid Chromatography ◽  
Switching Method ◽  
Valve Switching

Simultaneous determination of parabens and inorganic anions in cosmetics in a single injection was obtained in a two-dimensional UHPLC-IC valve switching system.

Simultaneous Determination of Organic Acids, Inorganic Anions, and Alditols in Wine with Valve-Switching Ion Chromatography

2018 ◽  
Vol 81 (7) ◽  
pp. 1103-1108 ◽  
Author(s):  
Fangfang Li ◽  
Yan Bao ◽  
Yuexue Yu ◽  
He Cui ◽  
Yun Fa ◽  
...  
Keyword(s):  
Organic Acids ◽  
Simultaneous Determination ◽  
Ion Chromatography ◽  
Inorganic Anions ◽  
Valve Switching

Simultaneous detection of anions and carbohydrates in cyanobacteria by two-dimensional ion chromatography

2020 ◽  
Author(s):  
Lijun Jiang ◽  
Yan Bao ◽  
Liang Guo ◽  
He Cui ◽  
Qi Wang ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Ion Chromatography ◽  
Solid Phase ◽  
Simultaneous Detection ◽  
Two Dimensional ◽  
Chromatography Method ◽  
Research Fields ◽  
Determination Of Anions ◽  
Valve Switching

Abstract Background The simultaneous analysis of several anions and carbohydrates by one-dimensional chromatography with a single detector is often complicated by the presence of overlapping peaks. To overcome this problem, analytes are usually analysed separately making analysis long and tedious. Objective A method combining two-dimensional ion chromatography (2 D-IC) and valve switching was developed for the simultaneous determination of anions (F−, Cl−, NO2−, SO42−, NO3−, and PO43−) and carbohydrates (glycerinum, glucosyl glycerol, trehalose, mannose, glucose, galactose, fructose, ribose, and sucrose) in cyanobacteria. Methods Interfering color compounds were removed by first passing the sample through graphitized carbom solid phase extraction (SPE) cartridges. Samples were applied to an AS11-HC column, which was used to separate the anions followed by quantification using a conductance detector. Carbohydrates eluted from the AS11-HC column were trapped and separated on a MA1 column and simultaneously quantified using electrochemical detection in the second dimension with valve switching. Results The following parameters were established: LOD, 0.001–0.030 (mg/L); LOQ, 0.001–0.010 (mg/L); linearity (r), 0.9940; repeatability, 0.39%–3.02%; and spiked recovery, 90.1%–107%. Conclusion The proposed method is adequately linear, accurate, and repeatable. The 2 D-IC method provides fast, high resolution, and completely automated procedure for the simultaneous determination of anions and carbohydrates without co-elution compared to the one dimension ion chromatography method. This study provides application perspectives for use in biotechnology and other research fields. Highlights An accurate and effective 2 D-IC method was developed for determining anions and carbohydrates in cyanobacteria. The method includes pre-treating samples with graphitized carbon SPE cartridges.

Simultaneous determination of inorganic anions and metal ions by suppressed ion chromatography

1999 ◽  
Vol 382 (3) ◽  
pp. 291-299 ◽  
Author(s):  
Maria Concetta Bruzzoniti ◽  
Edoardo Mentasti ◽  
Corrado Sarzanini
Keyword(s):  
Metal Ions ◽  
Simultaneous Determination ◽  
Ion Chromatography ◽  
Inorganic Anions

Sub-1 mL sample requirement for simultaneous determination of 17 organic and inorganic anions and cations in Antarctic ice core samples by dual capillary ion chromatography

2019 ◽  
Vol 1063 ◽  
pp. 167-177 ◽  
Author(s):  
Estrella Sanz Rodriguez ◽  
Christopher Plummer ◽  
Meredith Nation ◽  
Andrew Moy ◽  
Mark Curran ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Ion Chromatography ◽  
Ice Core ◽  
Inorganic Anions ◽  
Core Samples ◽  
Anions And Cations
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