New procedure for intensity and detection limit determination in spectral trace analysis: application for trace mercury by TXRF

2002 ◽  
Vol 31 (4) ◽  
pp. 289-295 ◽  
Author(s):  
L. Bennun ◽  
E. D. Greaves ◽  
J. J. Blostein
Keyword(s):  
Detection Limit ◽  
Trace Analysis ◽  
Analysis Application

Development and validation of a WD‐XRF method for quantitative trace analysis: Application in the food industry

2020 ◽  
Author(s):  
María Fernanda Gazulla ◽  
Marta Rodrigo ◽  
María Jesús Ventura ◽  
Mónica Orduña ◽  
Cristina Andreu
Keyword(s):  
Trace Analysis ◽  
Food Industry ◽  
Analysis Application ◽  
Development And Validation

Trace Analysis Using EDS: Applications to Thin-Film and Heterogeneous Samples

1990 ◽  
Vol 34 ◽  
pp. 57-70 ◽  
Author(s):  
B. J. Cross ◽  
J. E. Augenstine
Keyword(s):  
Thin Film ◽  
Detection Limit ◽  
Trace Analysis ◽  
Chemical Component ◽  
Minimum Detection Limit ◽  
False Detection ◽  
Heterogeneous Samples ◽  
Analysis Measurement ◽  
Detection And Quantification

Critical to “Trace Analysis” measurement are the concepts of detection and quantification. Detection means positively identifying a chemical component. The term Minimum Detection Limit (MDL), used here, follows that of Currie, and is the smallest concentration that yields a net count, above system background, which will be detected with a 95% probability (with only a 5% probability of false detection).

Correction of Line Interference in X-Ray Fluorescence Trace Analysis. Application to Yttrium Determination in Silicate Rocks

1997 ◽  
Vol 26 (5) ◽  
pp. 272-274 ◽  
Author(s):  
José Antonio Gásquez ◽  
Ernesto Perino ◽  
Eduardo Marchevsky ◽  
Roberto Olsina ◽  
Alberto Riveros
Keyword(s):  
Trace Analysis ◽  
X Ray ◽  
Analysis Application ◽  
Silicate Rocks ◽  
Line Interference

Lowering the detection limit towards nanomolar mercury ion detection via surface modification of N-doped carbon quantum dots

2019 ◽  
Vol 43 (22) ◽  
pp. 8677-8683 ◽  
Author(s):  
Kosar Hikmat Hama Aziz ◽  
Khalid M. Omer ◽  
Rebaz Fayaq Hamarawf
Keyword(s):  
Analytical Chemistry ◽  
Quantum Dots ◽  
Surface Modification ◽  
Detection Limit ◽  
Environmental Analysis ◽  
Trace Analysis ◽  
Carbon Dots ◽  
Carbon Quantum Dots ◽  
Mercury Ion ◽  
Mercury Ion Detection

Surface modification of carbon dots can lower the detection limit of trace analysis which is challenging in analytical chemistry and environmental analysis.

scholarly journals Determination of phosphate in water by flow coulometry

2020 ◽  
Vol 13 (1) ◽  
pp. 102-107
Author(s):  
A. Manová ◽  
E. Beinrohr
Keyword(s):  
Detection Limit ◽  
Trace Analysis ◽  
Present Method ◽  
Coulometric Titration ◽  
Electrolytic Reduction ◽  
Phosphate Content ◽  
Optimal Conditions ◽  
Content Determination ◽  
Wastewater Samples

AbstractIn this work, the possibility of flow coulometry application as coulometric titration was studied. The method was used to analyze phosphates in wastewater samples. The principle of the determination consisted in the formation of molybdophosphate and its subsequent one-electron electrolytic reduction. The present method is applicable under optimal conditions in the concentration range of 1.5 × 10−6 to 5.5 × 10−5 mol/dm3. Detection limit of the method is 3.42 × 10−7 mol/dm3. Mineralization step has been proved a problem in total phosphate content determination. If mineralization was not carried out, only inorganic soluble phosphates were determined. It is a new method characterized by its simplicity of instrumentation and handling, which is a prerequisite for its further use in the field of trace analysis.

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