Improved method for the determination of vitamin K1 epoxide in human plasma with electrofluorimetric reaction detection

1984 ◽  
Vol 289 ◽  
pp. 377-385 ◽  
Author(s):  
J.P. Langenberg ◽  
U.R. Tjaden
Keyword(s):  
Human Plasma ◽  
Vitamin K1 ◽  
Improved Method

HPLC–APCI–MS for the determination of vitamin K1 in human plasma: Method and clinical application

2008 ◽  
Vol 875 (2) ◽  
pp. 541-545 ◽  
Author(s):  
Q SONG ◽  
A WEN ◽  
L DING ◽  
L DAI ◽  
L YANG ◽  
...  
Keyword(s):  
Human Plasma ◽  
Clinical Application ◽  
Vitamin K1 ◽  
Plasma Method

An improved method for the determination of fluticasone propionate in human plasma

1999 ◽  
Vol 21 (4) ◽  
pp. 749-758 ◽  
Author(s):  
Lynn Laugher ◽  
Terry G Noctor ◽  
Andrew Barrow ◽  
Janet M Oxford ◽  
Trevor Phillips
Keyword(s):  
Fluticasone Propionate ◽  
Human Plasma ◽  
Improved Method

Reversed phase UPLC/APCI-MS determination of Vitamin K1 and menaquinone-4 in human plasma: Application to a clinical study

2020 ◽  
Vol 183 ◽  
pp. 113147 ◽  
Author(s):  
Yuning Zhang ◽  
Yashpal S. Chhonker ◽  
Veenu Bala ◽  
Alex Hagg ◽  
Linda G. Snetselaar ◽  
...  
Keyword(s):  
Clinical Study ◽  
Human Plasma ◽  
Reversed Phase ◽  
Vitamin K1

Optimizing determination of plasma albumin by the bromcresol green dye-binding method.

1981 ◽  
Vol 27 (1) ◽  
pp. 144-146 ◽  
Author(s):  
W S Robertson
Keyword(s):  
Reaction Time ◽  
Linear Regression ◽  
Human Plasma ◽  
Protein Composition ◽  
Improved Method ◽  
Reaction Conditions ◽  
Plasma Albumin ◽  
Optimal Reaction ◽  
Bromcresol Green

Abstract Some modifications of the conditions of the reaction between plasma and bromcresol green have led to an improved method for determination of plasma albumin with the Vickers M300 multichannel analyzer. Dye concentration and reaction time are the factors principally influencing method specificity, but variable protein composition of human plasma also affects it, so that optimal reaction conditions vary from specimen to specimen. Thus a compromise must be reached such that the best conditions for determining plasma albumin over a range of different protein concentrations are achieved. In the proposed method for the Vickers M300 a reaction time of 12 s (the minimum possible) is used. Comparison with "rocket" immunoelectrophoresis gave the following linear regression: y = 10 + 0.79 x (n = 91; r = 0.96).

Faster determination of clottable fibrinogen in human plasma: an improved method and kinetic study.

1978 ◽  
Vol 24 (2) ◽  
pp. 351-353 ◽  
Author(s):  
Y Inada ◽  
H Okamoto ◽  
S Kanai ◽  
Y Tamaura
Keyword(s):  
Kinetic Study ◽  
Human Plasma ◽  
Normal Subjects ◽  
Fibrinogen Concentration ◽  
Improved Method ◽  
Km Value

Abstract Clottable fibrinogen in human plasma was determined by measuring spectrophotometrically the increase in turbidity with time due to the fibrinogen-fibrin conversion with thrombin. From the maximal absorbance, Amax, at 450 nm obtained 2 min or less after thrombin as added to plasma, we estimated the fibrinogen concentration in plasma of normal subjects and patients. Analysis of the rate of the absorbance increase yielded the Km value, 1.6 X 10(-5) mol/liter, which closely agrees with the Km of 1.2 X 10(-5) mol/liter obtained by analysis of the fibrinopeptides released from fibrinogen.

Routine Micromethod for the Determination of Vitamin K1 in Human Plasma

2013 ◽  
Vol 35 (6) ◽  
pp. 859-862 ◽  
Author(s):  
Ingolf Meineke ◽  
Cornelia Willnow ◽  
Julia Stingl ◽  
Jürgen Brockmöller
Keyword(s):  
Human Plasma ◽  
Vitamin K1
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