AMC Technical Briefs
The new AMC Technical Briefs, will bring to every member of the Analytical Division up to date news of current technical issues.
These documents may be freely reproduced and distributed in exactly the same form as published here, in print or electronic media, without formal permission from the Royal Society of Chemistry. Copies must not be offered for sale and the copyright notice must not be removed or obscured in any way. Any other reuse of this document, in whole or in part, requires permission in advance from the Royal Society of Chemistry.
Downloadable Files
The standard deviation of the sum of several variables
No 30 April 2008
PDF (100k)
CHNS Elemental Analysers
No 29 April 2008
PDF (84k)
Using analytical instruments and systems in a regulated environment
No. 28, September 2007
PDF (72k)
Why are we weighting?
No 27, June 2007
PDF (112k)
Experimental design and optimisation (2): handling uncontrolled factors
No. 26, December 2006
PDF (66k)
How good were analysts in the good old days before instrumentation?
No. 25, October 2006
PDF (94k)
Experimental design and optimisation (1): an introduction to some basic concepts
No. 24, June 2006
PDF (61k)
Mixture models for describing multimodal data
No. 23, March 2006
PDF (130k)
Uncertainties in concentrations estimated from calibration experiments
No. 22, March 2006
PDF (79k)
Energy-dispersive X-ray fluorescence spectrometry (EDXRF)
No. 21, September 2005
PDF (83k)
Analytical and sampling strategy, fitness for purpose, and computer games
No. 20, August 2005
PDF (102k)
Terminology - the key to understanding analytical science. Part 21: Sampling and sample preparation
No. 19, March 2005
PDF (77k)
GMO Proficiency testing: Interpreting z-scores derived from log-transformed data
No. 18, December 2004
PDF (68k)
The amazing Horwitz function
No. 17, July 2004
PDF (164k)
Proficiency testing: assessing z-scores in the longer term
No. 16, April 2004 revised April 2007
PDF (79k)
Is my uncertainty estimate realistic?
No. 15, December 2003
PDF (164k)
A glimpse into Bayesian statistics
No. 14, October 2003
PDF (122k)
Terminology - the key to understanding analytical science: Part 1: Accuracy, precision and uncertainty
No. 13, September 2003
PDF (164k)
The J-chart: a simple plot that combines the capabilities of Shewhart and cusum charts, for use in analytical quality control
No. 12, March 2003
PDF (27k)
Understanding and acting on scores obtained in proficiency testing schemes
No 11, December 2002
PDF (34k)
Fitting a linear functional relationship to data with error on both variables
No 10, March 2002
PDF (28k)
A simple fitness-for-purpose control chart based on duplicate results obtained from routine test materials
No 9, February 2002
PDF (26k)
The Bootstrap: A Simple Approach to Estimating Standard Errors and Confidence Intervals when Theory Fails
No 8, August 2001
PDF (32k)
Nitrogen factors
No 7, May 2001
PDF (24k)
Robust statistics: a method of coping with outliers
No 6, April 2001
PDF (40k)
What should be done with results below the detection limit?
No 5, April 2001
PDF (26k)
Representing data distributions with kernel density estimates
No 4, Revised March 2006
PDF (75k)
Is my calibration linear?
No 3, Revised December 2005
PDF (123k)
The zL-score--combining your proficiency test results with your own fitness for purpose criterion
No 2, Revised December 2005
PDF (49k)
The estimation and use of recovery factors
No 1, October 2000 has been superseded by AMC Recommendation No. 3
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