Collaborative study report: Evaluation of the ATCC experimental mycoplasma reference strains panel prepared for comparison of NAT-based and conventional mycoplasma detection methods

Biologicals ◽  
2013 ◽  
Vol 41 (6) ◽  
pp. 377-383 ◽  
Author(s):  
Alena Dabrazhynetskaya ◽  
Dmitriy V. Volokhov ◽  
Tsai-Lien Lin ◽  
Brian Beck ◽  
Rajesh K. Gupta ◽  
...  
Keyword(s):  
Collaborative Study ◽  
Detection Methods ◽  
Study Report ◽  
Mycoplasma Detection ◽  
Reference Strains

Oxygen and Retrolental Fibroplasia: In Defense of Data

PEDIATRICS ◽  
1978 ◽  
Vol 62 (3) ◽  
pp. 439-440
Author(s):  
V. Everett Kinsey ◽  
Arnall Patz ◽  
Leo Stern
Keyword(s):  
Collaborative Study ◽  
Retrolental Fibroplasia ◽  
Study Report

Accompanying the collaborative study report on PaO2 levels in retrolental fibroplasia (RLF) in the November 1977 issue of Pediatrics (60:655, 1977) were three editorial comments, two signed and one appearing under a somewhat confusing anonymous designation, commenting on the study, its outcome, and its implications. All three were critical of specific aspects of the report, some of which we, the authors, clearly realized not only when the study was being undertaken, but also when it was being analyzed and reported.

scholarly journals Preparation of reference stocks suitable for evaluation of alternative NAT-based mycoplasma detection methods

2013 ◽  
Vol 116 (1) ◽  
pp. 100-108 ◽  
Author(s):  
A. Dabrazhynetskaya ◽  
V. Furtak ◽  
D. Volokhov ◽  
B. Beck ◽  
V. Chizhikov
Keyword(s):  
Detection Methods ◽  
Mycoplasma Detection

Minicolumn Detection Methods for Aflatoxin in Raw Peanuts: Collaborative Study

1981 ◽  
Vol 64 (3) ◽  
pp. 674-677
Author(s):  
Odette L Shotwell ◽  
Charles E Holaday ◽  
◽  
A K Athnasios ◽  
J L Ayres ◽  
...  
Keyword(s):  
False Positive ◽  
Methylene Chloride ◽  
Collaborative Study ◽  
False Positives ◽  
Combination Method ◽  
Detection Methods ◽  
Neutral Alumina

Abstract The Holaday-Velasco method and a modified Holaday method have been compared. The former method combines the speed and simplicity of the Holaday extraction and cleanup with the sensitivity of the minicolumn originally described by Velasco. The combination method has been approved by the AOAC and the AACC for determining aflatoxin in corn. The Holaday method was modified by substituting toluene for benzene in the solvent partition, and methylene chloride for chloroform in the minicolumn development to eliminate use of hazardous solvents. The neutral alumina in the Holaday minicolumn was changed from activity V to activity III to provide a more stable column. At aflatoxin levels in raw peanuts of 13-20 ng/g, the presence of aflatoxin was missed by the modified Holaday method in 4 analyses (3 laboratories) of 42 reported. There were no misses in this contamination range by the Holaday-Velasco method. There were no misses by either method with samples containing >20 ng total anatoxins/g. Analysis of uncontaminated raw peanuts by the modified Holaday method resulted in 2 false positives of 14 reports; the Holaday-Velasco method produced no false positive reports from 15 analyses of uncontaminated peanuts. The Holaday-Velasco method was adopted official first action for peanuts.

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