Micronutrients Measurement Quality Assurance Program:  Helping Participants Use Interlaboratory Comparison Exercise Results To Improve Their Long-Term Measurement Performance

1999 ◽  
Vol 71 (9) ◽  
pp. 1870-1878 ◽  
Author(s):  
David L. Duewer ◽  
Margaret C. Kline ◽  
Katherine E. Sharpless ◽  
Jeanice Brown Thomas ◽  
Kenneth T. Gary ◽  
...  
Keyword(s):  
Quality Assurance ◽  
Interlaboratory Comparison ◽  
Quality Assurance Program ◽  
Measurement Quality ◽  
Long Term Measurement ◽  
Comparison Exercise ◽  
Interlaboratory Comparison Exercise

scholarly journals Using Shewhart p control charts of external quality-assurance program data to monitor analytical performance of a clinical chemistry laboratory

1996 ◽  
Vol 42 (9) ◽  
pp. 1478-1482 ◽  
Author(s):  
D Chesher ◽  
L Burnett
Keyword(s):  
Quality Assurance ◽  
Control Charts ◽  
Clinical Chemistry ◽  
Analytical Performance ◽  
External Quality Assurance ◽  
Chemistry Laboratory ◽  
Quality Assurance Program ◽  
External Quality ◽  
Simple Method

Abstract We have investigated the application of Shewhart's p control charts in our external quality-assurance program to monitor the long-term performance of our laboratory's analytical quality. The p control charts have been able to detect long-term changes in our laboratory's analytical performance that would have been difficult to detect by more-conventional techniques. We have explored methods for interpreting these charts as well as some of their limitations, which include minimum subgroup size and dependence on constant specification limits. These charts may be not only a simple method for the long-term monitoring of analytical performance of a laboratory, but also of use to the organizers of external quality-assurance programs.

Description and results of the NIST/NOAA 2005 Interlaboratory Comparison Exercise for Trace Elements in Marine Mammals

2007 ◽  
Vol 12 (3-4) ◽  
pp. 175-187 ◽  
Author(s):  
Steven J. Christopher ◽  
Rebecca S. Pugh ◽  
Michael B. Ellisor ◽  
Elizabeth A. Mackey ◽  
Rabia O. Spatz ◽  
...  
Keyword(s):  
Trace Elements ◽  
Marine Mammals ◽  
Interlaboratory Comparison ◽  
Comparison Exercise ◽  
Interlaboratory Comparison Exercise

Interlaboratory comparison exercise for the analysis of PCDD/Fs in samples of digested sewage sludge

Chemosphere ◽  
2001 ◽  
Vol 45 (8) ◽  
pp. 1139-1150 ◽  
Author(s):  
Joanna L. Stevens ◽  
Nicholas J.L. Green ◽  
Russell J. Bowater ◽  
Kevin C. Jones
Keyword(s):  
Sewage Sludge ◽  
Interlaboratory Comparison ◽  
Digested Sewage Sludge ◽  
Comparison Exercise ◽  
Interlaboratory Comparison Exercise
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