Determination of the free concentration of ropivacaine in plasma by packed capillary liquid chromatography: A comparison of ultrafiltration and microdialysis as sample preparation methods

2001 ◽  
Vol 13 (5) ◽  
pp. 197-201 ◽  
Author(s):  
Pernilla Koivisto ◽  
Sara K. Bergström ◽  
Karin E. Markides
Keyword(s):  
Liquid Chromatography ◽  
Sample Preparation ◽  
Capillary Liquid Chromatography ◽  
Free Concentration ◽  
Preparation Methods ◽  
Capillary Liquid ◽  
Sample Preparation Methods

Determination of aflatoxins in hazelnuts by various sample preparation methods and liquid chromatography–tandem mass spectrometry

2008 ◽  
Vol 1179 (2) ◽  
pp. 182-189 ◽  
Author(s):  
Alessandro Bacaloni ◽  
Chiara Cavaliere ◽  
Francesca Cucci ◽  
Patrizia Foglia ◽  
Roberto Samperi ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Sample Preparation ◽  
Tandem Mass Spectrometry ◽  
Tandem Mass ◽  
Preparation Methods ◽  
Chromatography Tandem Mass Spectrometry ◽  
Liquid Chromatography Tandem Mass ◽  
Sample Preparation Methods

Determination of thromboxanes, leukotrienes and lipoxins using high-temperature capillary liquid chromatography–tandem mass spectrometry and on-line sample preparation

2009 ◽  
Vol 1216 (22) ◽  
pp. 4648-4654 ◽  
Author(s):  
Sandra Rinne Dahl ◽  
Charlotte Ramstad Kleiveland ◽  
Moustapha Kassem ◽  
Tor Lea ◽  
Elsa Lundanes ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Capillary Liquid Chromatography ◽  
Tandem Mass ◽  
Chromatography Tandem Mass Spectrometry ◽  
Liquid Chromatography Tandem Mass ◽  
On Line ◽  
Capillary Liquid ◽  
Line Sample

Determination of retinoids by packed-capillary liquid chromatography with large-volume on-column focusing and temperature optimization

1999 ◽  
Vol 847 (1-2) ◽  
pp. 59-68 ◽  
Author(s):  
P Molander ◽  
T.E Gundersen ◽  
C Haas ◽  
T Greibrokk ◽  
R Blomhoff ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Large Volume ◽  
Capillary Liquid Chromatography ◽  
Temperature Optimization ◽  
Capillary Liquid

Review on sample preparation methods for oligonucleotides analysis by liquid chromatography

2018 ◽  
Vol 1090 ◽  
pp. 90-100 ◽  
Author(s):  
Łukasz Nuckowski ◽  
Anna Kaczmarkiewicz ◽  
Sylwia Studzińska
Keyword(s):  
Liquid Chromatography ◽  
Sample Preparation ◽  
Preparation Methods ◽  
Sample Preparation Methods

Sample Preparation Optimization for EDXRF Analysis of Portland Cement

1988 ◽  
Vol 32 ◽  
pp. 221-226
Author(s):  
Wayne Watson ◽  
Jim Parker ◽  
Anthony R. Harding
Keyword(s):  
Sample Preparation ◽  
Portland Cement ◽  
Preparation Methods ◽  
X Ray ◽  
Accuracy And Precision ◽  
Edxrf Analysis ◽  
Analytical Accuracy ◽  
Minimum Detection Limits ◽  
Sample Preparation Methods

AbstractVarious sample preparation methods for Energy Dispersive X-ray Fluorescence (EDXRF) analysis of Portland cement were compared in order to evaluate improvement in analytical accuracy and precision. Sample preparation requirements for EDXRF are slightly different than for Wavelength Dispersive X-ray Fluorescence (WDXRF), and the methods commonly used in WDXRF are not optimized for EDXRF. Primarily, the work focuses on techniques for producing a fused sample with the lowest practical concentration of lithium borate flux. Determination of minimum detection limits were made from samples with varying proportions of flux in order to evaluate analytical optimization. Ease and reproducibility of preparation of the sample was also considered.

Comparison of Sample Preparation Methods for Phosphorus in Grains and Stock Feeds

1968 ◽  
Vol 51 (4) ◽  
pp. 771-773
Author(s):  
Aaron E Rash
Keyword(s):  
Sample Preparation ◽  
Perchloric Acid ◽  
Sodium Molybdate ◽  
The Other ◽  
Acid Digestion ◽  
Preparation Methods ◽  
Commercial Feeds ◽  
Sample Preparation Methods ◽  
Good Agreement

Abstract The nitric-perchloric acid digestion, 22.070(b) and 22.073, for the determination of phosphorus in grains and stock feeds was compared with three other methods of sample preparation (destruction of organic material) : quinoline molybdate precipitation, perchloric-sulfuric-sodium molybdate digestion, and the plant method. The values obtained by the nitric-perchloric acid method were not in good agreement with those obtained by the other methods studied. Six samples of commercial feeds and one barley sample were analyzed. The barley sample gave very poor recoveries by method 22.073.

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