Turbidimetric measurement of microalbuminuria

1987 ◽  
Vol 166 (1) ◽  
pp. 85-89 ◽  
Author(s):  
Aimo Harmoinen ◽  
Pauli Vuorinen ◽  
Hannu Jokela
Keyword(s):  
Turbidimetric Measurement

Turbidimetric measurement of haze in canola oil by acetone precipitation

1996 ◽  
Vol 73 (11) ◽  
pp. 1557-1560 ◽  
Author(s):  
Hua Liu ◽  
Roman Przybylski ◽  
N. A. Michael Eskin
Keyword(s):  
Canola Oil ◽  
Acetone Precipitation ◽  
Turbidimetric Measurement

Turbidimetric measurement of lipase activity--problems and some solutions.

1987 ◽  
Vol 33 (9) ◽  
pp. 1624-1629 ◽  
Author(s):  
N W Tietz ◽  
D F Shuey ◽  
J R Astles
Keyword(s):  
Lipase Activity ◽  
Reaction Rate ◽  
Enzyme Activation ◽  
Lag Phase ◽  
Analytical Sensitivity ◽  
Healthy Individuals ◽  
Turbidimetric Method ◽  
Turbidimetric Measurement ◽  
Ph Stat ◽  
Carboxyl Esterase

Abstract We optimized a commercial turbidimetric method for lipase (EC 3.1.1.3) activity (Boehringer Mannheim Diagnostics) and overcame some of its deficiencies. Increasing the bile salt concentration to 35 mmol/L and the colipase concentration to 6 mg/L and using a continuous recording of the reaction-rate curve greatly improved the reaction kinetics, eliminated false results from increases in absorbance, reduced the lag phase, and increased the analytical sensitivity and accuracy. Differentiation of pancreatitis from nonpancreatitis sera by adding NaCl, 140 mmol/L, to the assay mixture to observe the degree of enzyme activation has important limitations. Sera from patients with pancreatitis and only slight or modest increases in lipase behave like sera from healthy individuals or from patients with nonpancreatic disease. The assay shows no interference by lipoprotein lipase and carboxyl esterase. Results compare well by this optimized method and by an optimized "pH-Stat" titrimetric method.

Turbidimetric Measurement of Amylase: Standardization and Control with Stable Serum

1963 ◽  
pp. 15-21 ◽  
Author(s):  
ARNOLD G. WARE ◽  
CLIFFORD B. WALBERG ◽  
REX E. STERLING ◽  
DAVID SELIGSON
Keyword(s):  
Turbidimetric Measurement ◽  
And Control

Turbidimetric Measurement on Synchronized Salmonella typhimurium Cultures

Nature ◽  
1955 ◽  
Vol 176 (4481) ◽  
pp. 563-564 ◽  
Author(s):  
V. G. BRUCE ◽  
K. G. LARK ◽  
O. MAALØE
Keyword(s):  
Salmonella Typhimurium ◽  
Turbidimetric Measurement
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