Caffeine Sensitive Electrode and Its Analytical Applications

2009 ◽  
Vol 7 (1) ◽  
pp. 42-49 ◽  
Author(s):  
Siavash Riahi ◽  
Farnoush Faridbod ◽  
Mohammad Reza Ganjali
1983 ◽  
Vol 50 (02) ◽  
pp. 563-566 ◽  
Author(s):  
P Hellstern ◽  
K Schilz ◽  
G von Blohn ◽  
E Wenzel

SummaryAn assay for rapid factor XIII activity measurement has been developed based on the determination of the ammonium released during fibrin stabilization. Factor XIII was activated by thrombin and calcium. Ammonium was measured by an ammonium-sensitive electrode. It was demonstrated that the assay procedure yields accurate and precise results and that factor XIII-catalyzed fibrin stabilization can be measured kinetically. The amount of ammonium released during the first 90 min of fibrin stabilization was found to be 7.8 ± 0.5 moles per mole fibrinogen, which is in agreement with the findings of other authors. In 15 normal subjects and in 15 patients suffering from diseases with suspected factor XIII deficiency there was a satisfactory correlation between the results obtained by the “ammonium-release-method”, Bohn’s method, and the immunological assay (r1 = 0.65; r2= 0.70; p<0.01). In 3 of 5 patients with paraproteinemias the values of factor XIII activity determined by the ammonium-release method were markedly lower than those estimated by the other methods. It could be shown that inhibitor mechanisms were responsible for these discrepancies.


2020 ◽  
Vol 63 (7) ◽  
pp. 708-720 ◽  
Author(s):  
V L Vaks ◽  
V A Anfertev ◽  
V Yu Balakirev ◽  
S A Basov ◽  
E G Domracheva ◽  
...  

2012 ◽  
Vol 29 (4) ◽  
pp. 440
Author(s):  
Yaqiong WANG ◽  
Shaopu LIU ◽  
Zhongfang LIU ◽  
Xiaoli HU

1983 ◽  
Vol 48 (4) ◽  
pp. 1123-1128
Author(s):  
S. P. Novitskii ◽  
I. I. Burenkov ◽  
V. I. Kenzin ◽  
R. Yu. Beck

Design, principal function and technical parameters of two polarograph-impendancemeters are given. The instruments are suitable both for analytical applications and for investigation of the kinetics and mechanism of electrode processes.


2021 ◽  
pp. 100114
Author(s):  
Mohd Javaid ◽  
Abid Haleem ◽  
Ravi Pratap Singh ◽  
Rajiv Suman

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