Zobrazeno 1 - 10
of 53
pro vyhledávání: '"R. B. Mccomb"'
Autor:
A. Kessner, J. C. Koedam, Basil T. Doumas, R. C. Paule, R. B. Mccomb, Billy W. Perry, H. L. Vader, K. L. J. Vink
Publikováno v:
Clinical Chemistry. 36:1698-1701
Three laboratories in the U.S. and two in the Netherlands determined molar absorptivities (epsilon) of Standard Reference Material (SRM) 916a Bilirubin from the National Institute of Standards and Technology. In caffeine reagent the average epsilon v
Publikováno v:
Clinical chemistry. 38(11)
We evaluated N-methyl-D-glucamine (MEG) as a buffer for assay of alkaline phosphatase (ALP; EC 3.1.3.1) and compared the MEG-based assay with the current International Federation of Clinical Chemistry Reference Method for ALP (IFCC/RM/ALP), in which
Autor:
B T, Doumas, B W, Perry, R B, McComb, A, Kessner, H L, Vader, K L, Vink, J C, Koedam, R C, Paule
Publikováno v:
Clinical chemistry. 36(9)
Three laboratories in the U.S. and two in the Netherlands determined molar absorptivities (epsilon) of Standard Reference Material (SRM) 916a Bilirubin from the National Institute of Standards and Technology. In caffeine reagent the average epsilon v
Publikováno v:
Clinical chemistry. 36(1)
Ion-selective electrode analyzers for measuring lithium (Li/ISE) in serum became available in early 1987. We compared results for patients' samples from three of them vs results from flame atomic emission spectrometry (FAES). Within-run and day-to-da
Publikováno v:
Clinical Chemistry. 29:205-208
A case of severe methanol intoxication (1300 mg/L) was associated with markedly increased serum creatinine (490 mg/L) despite normal urea values and the absence of any other signs of renal disease. These values declined progressively to normal, and t
Publikováno v:
Clinical Chemistry. 25:1234-1238
We describe a method for measurement of 3-methoxy-4-hydroxymandelic acid (vanillylmandelic acid, VMA) in urine. After the pH of the urine is adjusted to 2.7 and the sample is filtered, exactly 15 microL is injected onto a C-18 reversed-phase column.
Autor:
James G. Flood, R B McComb
Publikováno v:
Clinical Chemistry. 27:1268-1271
In this method for measuring metanephrine and normetanephrine in urine, they are freed from their conjugates by hydrolysis in acid, neutralized, and isolated on a cation-exchange resin. Both metanephrines are co-eluted with ammoniacal methanol and th
Autor:
R B McComb, G N Bowers
Publikováno v:
Clinical Chemistry. 30:1128-1136
A review of methodology for determining aspartate aminotransferase (ASAT; EC 2.6.1.1), including recent national and international recommendations, indicates that standardization of methodology alone will not bring interlaboratory compatibility of AS
Publikováno v:
Clinical Chemistry. 26:724-729
We describe specifications for high-purity 4-nitrophenol, which is suitable for spectrophotometric standardization. Such a reference material is needed in clinical enzymology to establish the proper molar absorptivity of 4-nitrophenol under final rea
Publikováno v:
Clinical Chemistry. 25:1806-1809
We measured total and dialyzable calcium concentrations in consecutive sera submitted for routine lithium analysis. Of 98 samples from 61 different individuals, six (6.1%) total calcium results and 32 (33%) dialyzable calcium results were above the r