J. Wolff

发表

Near-infrared hyperspectral unmixing based on a minimum volume criterion for fast and accurate chemometric characterization of counterfeit tablets.

Mário A. T. Figueiredo, M. Lopes, J. Bioucas-Dias, 2010, Analytical chemistry.

Quantification of Components in Non-Homogenous Pharmaceutical Tablets Using near Infrared Reflectance Imaging

Mário A. T. Figueiredo, M. Lopes, J. Bioucas-Dias, 2010 .

The use of particle beam mass spectrometry for the measurement of impurities in a nabumetone drug substance, not easily amenable to atmospheric pressure ionisation techniques.

J. Wolff, M. Balogh, P. Hawtin, 2001, Rapid communications in mass spectrometry : RCM.

Investigations into the accuracy and precision obtainable on accurate mass measurements on a quadrupole orthogonal acceleration time-of-flight mass spectrometer using liquid chromatography as sample introduction.

J. Wolff, Teresa Ramirez Fuentes, Jessica Taylor, 2003, Rapid communications in mass spectrometry : RCM.

Accurate mass liquid chromatography/mass spectrometry on orthogonal acceleration time-of-flight mass analyzers using switching between separate sample and reference sprays. 1. Proof of concept.

J. Wolff, R. Bateman, K. Giles, 2000, Analytical chemistry.

Accurate mass liquid chromatography/mass spectrometry on quadrupole orthogonal acceleration time-of-flight mass analyzers using switching between separate sample and reference sprays. 2. Applications using the dual-electrospray ion source.

J. Wolff, R. Bateman, K. Giles, 2001, Analytical chemistry.

Detection of phosphorus tagged carboxylic acids using HPLC-SF-ICP-MS

J. Wolff, Phil Jones, E. Evans, 2005 .

Investigation into the factors affecting accuracy of mass measurements on a time-of-flight mass spectrometer using Design of Experiment.

Marion J. Chatfield, J. Wolff, P. Borman, 2007, Rapid communications in mass spectrometry : RCM.

Investigation of the advanced functionalities of a hybrid quadrupole orthogonal acceleration time-of-flight mass spectrometer.

J. Wolff, A. Laures, P. J. Weaver, 2007, Rapid communications in mass spectrometry : RCM.

Identification of the 'wrong' active pharmaceutical ingredient in a counterfeit Halfan drug product using accurate mass electrospray ionisation mass spectrometry, accurate mass tandem mass spectrometry and liquid chromatography/mass spectrometry.

J. Wolff, C. Eckers, L. A. Thomson, 2003, Rapid communications in mass spectrometry : RCM.

Fragmentation of Trimethoprim and other Compounds Containing Alkoxy-Phenyl Groups in Electrospray Ionisation Tandem Mass Spectrometry

J. Wolff, C. Eckers, J. Monaghan, 2005, European journal of mass spectrometry.

Detection of counterfeit tablets of an antiviral drug using δ34S measurements by MC-ICP-MS and confirmation by LA-MC-ICP-MS and HPLC-MC-ICP-MS

J. Wolff, R. Santamaría-Fernández, R. Hearn, 2008 .

'On-the-fly' hydrogen/deuterium exchange liquid chromatography/mass spectrometry using a dual-sprayer atmospheric pressure ionisation source.

J. Wolff, A. Laures, 2006, Rapid communications in mass spectrometry : RCM.

"In-source" fragmentation of an isobaric impurity of lamotrigine for its measurement by liquid chromatography tandem mass spectrometry after pre-concentration using solid phase extraction.

J. Wolff, D. Carrier, C. Eckers, 2008, Journal of pharmaceutical and biomedical analysis.

Detection of counterfeit antiviral drug Heptodin and classification of counterfeits using isotope amount ratio measurements by multicollector inductively coupled plasma mass spectrometry (MC-ICPMS) and isotope ratio mass spectrometry (IRMS).

Jean-Claude Wolff, Ruth Hearn, J. Wolff, 2009, Science & justice : journal of the Forensic Science Society.

Sulfur-specific detection of impurities in cimetidine drug substance using liquid chromatography coupled to high resolution inductively coupled plasma mass spectrometry and electrospray mass spectrometry.

J. Wolff, C. Eckers, E. H. Evans, 2001, Analytical chemistry.

Aerobic biotransformation of 4-fluorocinnamic acid to 4-fluorobenzoic acid

J. Wolff, A. Edwards, L. M. Freitas dos Santos, 2004, Biodegradation.

Biodegradation studies of 4-fluorobenzoic acid and 4-fluorocinnamic acid: an evaluation of membrane inlet mass spectrometry as an alternative to high performance liquid chromatography and ion chromatography

C. Creaser, J. Wolff, L. M. F. D. Santos, 2002 .

Investigation into classification/sourcing of suspect counterfeit Heptodintrade mark tablets by near infrared chemical imaging.

Jean-Claude Wolff, Marta B Lopes, M. Lopes, 2009, Analytica chimica acta.

Identification of isobaric amino-sulfonamides without prior separation.

J. Wolff, Samantha J Barry, 2012, Rapid communications in mass spectrometry : RCM.

Analysis of betamethasone, dexamethasone and related compounds by liquid chromatography/electrospray mass spectrometry.

J. Wolff, D. Carrier, Kathryn E Arthur, 2004, Rapid communications in mass spectrometry : RCM.

Determination of the composition of counterfeit Heptodin tablets by near infrared chemical imaging and classical least squares estimation.

Jean-Claude Wolff, Mário A. T. Figueiredo, Marta B Lopes, 2009, Analytica chimica acta.

Preliminary investigation of the application of on-line membrane extraction of trifluoroacetic acid as an aid to improvement of negative ion electrospray mass spectrometry data.

J. Wolff, G. Okafo, S. Crabtree, 2001, Journal of chromatography. A.

Measuring SI-traceable nitrate concentrations in water by a primary method of measurement, isotope dilution mass spectrometry

J. Wolff, P. Bievre, P. Taylor, 1997 .

NIR Chemical Imaging for Counterfeit Pharmaceutical Products Analysis Counterfeit pharmaceutical products

E. Neil Lewis, Jean-Claude Wolff, Janie Dubois, 2007 .

Stability studies and purification procedure for nitrite solutions in view of the preparation of isotopic reference materials.

J. Wolff, P. De Biévre, P. Taylor, 1998, Talanta.

Investigating Counterfeit Medicines—The near Infrared Chemical Imaging Picture

Mário A. T. Figueiredo, M. Lopes, J. Bioucas-Dias, 2011 .

Development, validation and transfer into a factory environment of a liquid chromatography tandem mass spectrometry assay for the highly neurotoxic impurity FMTP (4-(4-fluorophenyl)-1-methyl-1,2,3,6-tetrahydropyridine) in paroxetine active pharmaceutical ingredient (API).

J. Wolff, D. Elder, P. Borman, 2008, Journal of pharmaceutical and biomedical analysis.

Investigation into the quantitative analysis of diethylene glycol in toothpaste by direct analysis in real time mass spectrometry.

J. Wolff, Samantha J Barry, 2016, Rapid communications in mass spectrometry : RCM.

Derivatisation of carboxylic acid groups in pharmaceuticals for enhanced detection using liquid chromatography with electrospray ionisation tandem mass spectrometry.

J. Wolff, Phil Jones, E. Evans, 2005, Rapid communications in mass spectrometry : RCM.

Certification of a 15N-enriched nitrate species-specific spike isotopic reference material IRMM-627

J. Wolff, P. Bievre, P. Taylor, 1996 .

Traceable values for nitrate in water samples by isotope dilution analysis using a small thermionic quadrupole mass spectrometer.

J. Wolff, P. De Biévre, D. P. Taylor, 1996, Analytical chemistry.

Trace level impurity method development with high-field asymmetric waveform ion mobility spectrometry: systematic study of factors affecting the performance.

J. Wolff, J. Kapron, E. Champarnaud, 2009, Rapid Communications in Mass Spectrometry.

Application of laser ablation multicollector inductively coupled plasma mass spectrometry for the measurement of calcium and lead isotope ratios in packaging for discriminatory purposes.

J. Wolff, R. Santamaría-Fernández, 2010, Rapid communications in mass spectrometry : RCM.

Component detection weighted index of analogy: similarity recognition on liquid chromatographic mass spectral data for the characterization of route/process specific impurities in pharmaceutical tablets.

R. Brereton, J. Wolff, S. Zomer, 2005, Analytical Chemistry.