Quality-Control Programs for Seedborne Pathogens

Plant Disease ◽  
1983 ◽  
Vol 67 (2) ◽  
pp. 236 ◽  
Author(s):  
Shu Geng
Keyword(s):  
Quality Control ◽  
Control Programs ◽  
Seedborne Pathogens

Interlaboratory Comparison of Lead and Cadmium in Blood, Urine, and Aqueous Solutions

1978 ◽  
Vol 24 (10) ◽  
pp. 1797-1800 ◽  
Author(s):  
Poul-Erik Paulev ◽  
Poul Solgaard ◽  
Jens Christian Tjell
Keyword(s):  
Quality Control ◽  
Aqueous Solutions ◽  
Interlaboratory Comparison ◽  
Control Program ◽  
Quality Control Program ◽  
Control Programs ◽  
Lead And Cadmium ◽  
Biological Liquids

Abstract Analysis for lead and cadmium in biological liquids (blood and urine) is difficult. Results of such analyses from five laboratories are compared for samples with known additions of lead and cadmium. The data, evaluated in terms of inter- and intralaboratory reproducibility and accuracy, suggest that laboratories should voluntarily participate in quality control programs. Users of routine laboratories are advised to use their own quality control program.

scholarly journals OP09.14: Quality control programs for routine ultrasound examination: Experience using an internet-based tool (www.sfape.com)

2008 ◽  
Vol 32 (3) ◽  
pp. 340-340 ◽  
Author(s):  
L. J. Salomon ◽  
J. P. Bernard ◽  
P. Bouhanna ◽  
B. Perl ◽  
H. Hamon ◽  
...  
Keyword(s):  
Quality Control ◽  
Ultrasound Examination ◽  
Control Programs

Estimation, prevention, and quality control of carbon dioxide loss during aerobic sample processing.

1981 ◽  
Vol 27 (10) ◽  
pp. 1676-1681 ◽  
Author(s):  
Z L Bandi
Keyword(s):  
Carbon Dioxide ◽  
Quality Control ◽  
Control Program ◽  
Blood Collection ◽  
Serum Samples ◽  
Quality Control Program ◽  
Control Programs ◽  
Tert Butylamine ◽  
Clinically Significant ◽  
Blood Collection Tubes

Abstract We find that 2 to 6 mmol of carbon dioxide per liter (mean: 4.1 mmol/L) is lost during routine laboratory processing of patients' serum samples after centrifugation. Additional CO2 may be lost if evacuated blood-collection tubes are not filled completely during phlebotomy. More than 2 mmol of CO2 per liter is lost from samples stored in tightly stoppered tubes for 120 min if the tubes are less than half full. In extreme cases, 8 mmol of CO2 per liter may be lost from samples exposed to room air in open cups of automated micro-sample instruments. Clinically significant CO2 loss (greater than 2 mmol/L) before analysis is not detected by many laboratories because the generally accepted quality-control programs monitor only the very last step of the analytical process. A valid CO2 quality-control program should include samples with high as well as the generally used low pCO2 values. Alkalinization of serum and plasma samples with tert-butylamine prevents CO2 loss. Optimum tert-butylamine concentration, pH, and pCO2 were about 14 to 16 mmol/L, 9.0 to 9.3, and 0.4 to 1.5 mmHg (about 50 to 200 Pa).

Effect of Quality Control on Interlaboratory Performance

1968 ◽  
Vol 14 (6) ◽  
pp. 583-588
Author(s):  
Jack L Rudy
Keyword(s):  
Quality Control ◽  
Serum Samples ◽  
Sodium Potassium ◽  
Control Programs ◽  
Accuracy And Precision

Abstract For 7 months, serum samples reflecting high, normal, and low physiologic values were distributed to five laboratories for sodium, potassium, and calcium analyses. Following recalibration of instruments and required repairs, quality control programs were initiated and additional serum samples were analyzed. The results were collected and statistics calculated to determine improvement, if any, in accuracy and precision. Improvement was demonstrated in some cases.

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