Solid-phase reactors in sequential injection analysis. Determination of manganese(II) in tap water and effluent streams using a solid-phase lead(IV) dioxide reactor in a sequential injection system

2001 ◽  
Vol 370 (6) ◽  
pp. 776-780 ◽  
Author(s):  
E. B. Naidoo ◽  
J. F. van Staden
Keyword(s):  
Solid Phase ◽  
Tap Water ◽  
Injection System ◽  
Sequential Injection Analysis ◽  
Sequential Injection ◽  
Phase Lead ◽  
Analysis Determination

Sequential injection system with in-line solid phase extraction and soil mini-column for determination of zinc and copper in soil leachates

Talanta ◽  
2018 ◽  
Vol 185 ◽  
pp. 316-323 ◽  
Author(s):  
Justyna Paluch ◽  
Raquel B.R. Mesquita ◽  
Víctor Cerdà ◽  
Joanna Kozak ◽  
Marcin Wieczorek ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Injection System ◽  
Phase Extraction ◽  
Sequential Injection

scholarly journals Automated Online Solid-Phase Extraction Coupled with Sequential Injection-HPLC-EC System for the Determination of Sulfonamides in Shrimp

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Pimkwan Chantarateepra ◽  
Weena Siangproh ◽  
Shoji Motomizu ◽  
Orawon Chailapakul
Keyword(s):  
Solid Phase Extraction ◽  
High Performance ◽  
Solid Phase ◽  
Sequential Injection Analysis ◽  
Phase Extraction ◽  
Sequential Injection ◽  
Elution Time ◽  
Online Solid Phase Extraction ◽  
Relative Standard

The use of fully automated online solid-phase extraction (SPE) coupled with sequential injection analysis, high-performance liquid chromatography (HPLC), and electrochemical detection (EC) for the separation and determination of sulfonamides has been developed. A homemade microcolumn SPE system coupled with sequential injection analysis (SIA) was used to automate the sample cleanup and extraction of sulfonamides. The optimal flow rate of sample loading and elution was found to be 10 μL/s, and optimal elution time of zone was 20–24 s. Under the optimal conditions, a linear relationship between peak area and sulfonamide concentrations was obtained in the range of 0.01–8.0 μg mL−1. Detection limits for seven sulfonamides were between 1.2 ng mL−1and 11.2 ng mL−1. The proposed method has been applied for the determination of sulfonamides in shrimp. Recoveries in the range of 84–107% and relative standard deviations (RSDs) below 6.5% for intraday and 13% for inter-day were received for three concentration levels of spiking. The results showed that the present method was simple, rapid, accurate and highly sensitive for the determination of sulfonamides.

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