Atmospheric pressure chemical ionisation liquid chromatography/multistage mass spectrometry for assignment of sedimentary bacteriochlorophyll derivatives

2004 ◽  
Vol 19 (1) ◽  
pp. 38-46 ◽  
Author(s):  
Michael A. Wilson ◽  
Dominic A. Hodgson ◽  
Brendan J. Keely
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Atmospheric Pressure ◽  
Pressure Chemical ◽  
Chemical Ionisation

scholarly journals Potential of liquid chromatography–atmospheric pressure chemical ionisation tandem mass spectrometry for determination of fosetyl-aluminium residues in dried hops

2011 ◽  
Vol 22 (No. 1) ◽  
pp. 24-28
Author(s):  
J. Poustka ◽  
J. Hajšlová ◽  
K. Holadová ◽  
K. Nováková
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Tandem Mass Spectrometry ◽  
Atmospheric Pressure ◽  
Tandem Mass ◽  
Method Performance ◽  
Selective Determination ◽  
Pressure Chemical ◽  
Chemical Ionisation

New analytical procedure for the determination of fosetyl-aluminium in hop cones (also called “hops”) was developed. Liquid chromatography–atmospheric pressure chemical ionisation tandem mass spectrometry (LC–APCI-MS/MS) allowed a highly selective determination of this fungicide which facilitated the sample preparation. The sufficiently low detection limit (1 mg/kg of dried hops) with the acceptable method performance characteristics (RSD 9%, recovery 76% – at the level of 10 mg/kg) complies with the need to inspect the observance of maximal residual limit 100 mg/kg. The application of LC-MS technique thus provided an effective way of fosetyl-aluminium determination in the complex hops matrix.  

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