scholarly journals A chronopotentiometric flow injection system for aptasensing of E. coli O157

2015 ◽  
Vol 7 (3) ◽  
pp. 825-829 ◽  
Author(s):  
Jiahong Lei ◽  
Jiawang Ding ◽  
Wei Qin
Keyword(s):  
Flow Injection ◽  
Flow Injection Analysis ◽  
Injection System ◽  
E Coli ◽  
Flow Injection Analysis System ◽  
Flow Injection System ◽  
Analysis System ◽  
Simple Flow

In this research, we demonstrate a simple flow injection analysis system for the chronopotentiometric aptasensing of E. coli O157.

A simple turbidimetric flow injection system for saccharin determination in sweetener products

2010 ◽  
Vol 64 (3) ◽  
Author(s):  
Camila Mendes ◽  
Emiliane Laignier ◽  
Maisa Brigagão ◽  
Pedro Luccas ◽  
César Tarley
Keyword(s):  
Flow Injection ◽  
Hplc Method ◽  
Chloride Ions ◽  
Injection System ◽  
Precipitation Reaction ◽  
Relative Standard ◽  
Flow Injection Analysis System ◽  
Flow Injection System ◽  
Analysis System ◽  
Sodium Cyclamate

AbstractA new method for saccharin determination in liquid sweetener products was developed. The method is based on the precipitation reaction of Ag(I) ions with saccharin in aqueous medium (pH 3.0), using a flow injection analysis system with merging zones, the suspension was stabilized with 5 g L−1 Triton X-100. All experimental parameters influencing the flow injection system were optimized by means of chemometric approaches. The linear analytical curve was built from 2.4 g L−1 up to 9.64 g L−1 (r = 0.9968) with a quantification limit of 2.40 g L−1. The precision assessed as relative standard deviation (n = 10) was found to be 1.75 % for the saccharin concentration of 7.20 g L−1. Based on interference studies performed with the substances commonly found in liquid sweeteners, such as sodium cyclamate, methylparaben, sodium aspartame, and benzoic and citric acids, at the analyte to interferent mole ratio of up to 1: 10, no interference with the saccharin determination was observed. The presence of chloride ions interferes with the method, but a preceding liquid-liquid saccharin extraction with ethyl acetate was successfully employed to overcome this drawback. Accuracy of the method in sweetener products was evaluated by a comparison with the HPLC method.

Simple flow injection analysis system for determination of added sugars in dairy products

1998 ◽  
Vol 65 (4) ◽  
pp. 675-680 ◽  
Author(s):  
EDUARDO CORTÓN ◽  
GUILLERMO LOCASCIO
Keyword(s):  
Flow Injection ◽  
Flow Injection Analysis ◽  
Dairy Products ◽  
Added Sugars ◽  
Microbial Sensor ◽  
Flow Injection Analysis System ◽  
Analysis System ◽  
Simple Flow ◽  
Good Agreement

A microbial sensor based on a carbon dioxide electrode coupled with immobilized Saccharomyces cerevisiae (baker's yeast) has been used for the determination of sucrose in dairy products. The sensor was used as the detector in a flow injection analysis system. Calibration curves for sucrose were established from 1 to 100 g/l. Determinations for several dairy products containing added sucrose gave good agreement with the concentrations given by manufacturers. Typically, the se of the method was shown to be <5% of the calculated mean.

Flow Injection Analysis System forl-Lysine Estimation in Foodstuffs Using a Biosensor Based on Lysine Oxidase Immobilization on a Gold-Poly(m-Phenylenediamine) Electrode

2003 ◽  
Vol 36 (9) ◽  
pp. 1939-1963 ◽  
Author(s):  
Maria H. Divritsioti ◽  
Ioannis D. Karalemas ◽  
Constantinos A. Georgiou ◽  
Demetrius S. Papastathopoulos
Keyword(s):  
Flow Injection ◽  
Flow Injection Analysis ◽  
Flow Injection Analysis System ◽  
Analysis System ◽  
Lysine Oxidase

Flow injection analysis system for determining soil pH

The Analyst ◽  
1983 ◽  
Vol 108 (1289) ◽  
pp. 1013 ◽  
Author(s):  
Tony E. Edmonds ◽  
Grace Coutts
Keyword(s):  
Soil Ph ◽  
Flow Injection ◽  
Flow Injection Analysis ◽  
Flow Injection Analysis System ◽  
Analysis System
Sign in / Sign up

Export Citation Format

Share Document