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Fasting and 24-h urine pH in patients with urolithiasis using potassium citrate
(E-century Publishing Corp, 2022-01-01)
Purpose: To evaluate the correlation between the pH readings in 24 h urine and the random fasting specimen in patients with urolithiasis using 2 methods. Methods: A total of 114 patients with urinary lithiasis using potassium ...
Differential pulse polarographic determination of ceftazidime in urine samples with and without prior extraction
(Elsevier B.V., 1997-09-30)
Ceftazidime shows two main polarographic reduction peaks at pH 4.0, that at -0.45 V owing to reduction of the C=N bond in the methylethoxyimino group and that at -1.00 V owing to the reductive elimination of pyridine: the ...
Determination of cinnamic acid in human urine by differential-pulse polarography
(Royal Soc Chemistry, 1996-02-01)
The differential pulse polarographic behaviour of cinnamic acid was studied in acetate and phosphate buffer solutions (pH 3.5-7.5). The reduction mechanism is discussed. The drug can be determined at pH 5.0 over the ...
The association of prepartum urine pH, plasma total calcium concentration at calving and postpartum diseases in Holstein dairy cattle
(Elsevier, 2021)
The use of anionic salts to prevent milk fever in dairy cattle has been an effective nutritional strategy; however, the degree of acidification that determines the most acceptable productive responses andwell-being of the ...
A flow-based procedure with solenoid micro-pumps for the spectrophotometric determination of uric acid in urine
(ELSEVIER SCIENCE BV, 2010)
The determination of uric acid in urine shows clinical importance, once it can be related to human organism dysfunctions, such as gout. An analytical procedure employing a multicommuted flow system was developed for the ...
Hydroxyproline and starch consumption and urinary supersaturation with calcium oxalate in cats
(2018-12-01)
The effect of extruded foods intake with different contents of starch, protein and hydroxyproline were evaluated on water balance, oxalate renal excretion, urine chemical composition and the relative urine supersaturation ...
Voltammetric sensor for amoxicillin determination in human urine using polyglutamic acid/glutaraldehyde film
(Elsevier B.V. Sa, 2008-08-12)
A voltammetric sensor for determination of amoxicillin (AMX) was developed based on a glutaraldehyde cross-linked polyglutamic acid modified glassy carbon electrode. The proposed method is based on pre-concentration of AMX ...
Preservation of urine samples for metabolic evaluation of stone-forming patients
(Springer, 2006-10-01)
Metabolic evaluation of stone-forming (SF) patients is based on the determination of calcium, oxalate, citrate, uric acid and other parameters in 24-h urine samples under a random diet. A reliable measurement of urinary ...
Study of caffeine urine and saliva of horses subjected to urinary acidification
(Wiley-Blackwell, 2004-11-01)
The study of caffeine in racing horses has been of growing concern in veterinary sports medicine since the Association of Racing Commissioners International (ARCI) stated that it has no valid therapeutic use in racehorses. ...