Determination of ammonia in cerebrospinal fluid using the indophenol direct method

Autor: A.E.J. de Jager, A Teelken, Albert Tangerman, J.R. Huizenga, C.H. Gips, Peter L.M. Jansen

Publikováno v: Molecular and chemical neuropathology / sponsored by the International Society for Neurochemistry and the World Federation of Neurology and research groups on neurochemistry and cerebrospinal fluid, 34(2-3), 169-177. Humana Press
Molecular and Chemical Neuropathology, 34, pp. 169-177
Molecular and Chemical Neuropathology, 34, 169-177

We have determined ammonia in cerebrospinal fluid (CSF) with the indophenol direct method. The results were compared with an enzymatic method. The method is very simple, and precision (coefficient of variation 1.6%) and linearity (r = 0.9999, p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8d49673a2b5e512555839286eadc278
https://doi.org/10.1007/bf02815078

Lactate and ammonia concentration in blood and sweat during incremental cycle ergometer exercise

Autor: W. Ament, J. R. Huizenga, C.H. Gips, G.J. Verkerke, G.A. Mook

Publikováno v: International Journal of Sports Medicine, 18(1), 35-39. GEORG THIEME VERLAG KG

It is known that the concentrations of ammonia and lactate in blood increase during incremental exercise. Sweat also contains lactate and ammonia. The aim of the present study was to investigate the physiological response of lactate and ammonia in pl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cd4e9c2762d161e0754dd093c2e4c21
https://research.rug.nl/en/publications/84b6fb93-ab76-4984-afb1-15289a377fcd

Ammonia determination in blood using the tca direct method

Autor: C.H. Gips, M. Wibbens-Alberts

Publikováno v: Clinica Chimica Acta. 22:183-186

Konitzer and Voigt's (modified) method for the determination of ammonia in blood and plasma has proved to be of value for clinical use. No special apparatus is required. In our opinion, of all blood ammonia determinations, this is one of the easiest

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c61facf21369d33bee5a1a64d9f96950
https://doi.org/10.1016/0009-8981(68)90355-0

Hepatic disease in erythropoietic protoporphyria

Autor: S. van der Veen, G.J.J. Beukeveld, G.M.T. de Jong, B.R. Mooyaart, J. Grond, L.H.H.M. Driessen, C.H. Gips

Publikováno v: Dermatologica. 173(3)

A standardized hepatological investigation was performed in 9 unselected patients with erythropoietic protoporphyria (EPP). The aim of this study was to detect early liver involvement due to EPP and to determine the significance of several diagnostic

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https://pubmed.ncbi.nlm.nih.gov/3770258

Preservation of urine for ammonia determination with a direct method

Autor: C.H. Gips, A. Reitsema, M. Wibbens-Alberts

Publikováno v: Clinica chimica acta; international journal of clinical chemistry. 29(3)

Determination of the urinary ammonia concentration can be done by applying Berthelot's indophenol reaction directly on diluted urine. When non-infected urine is stored in stoppered sterile bottles at room temperature, the ammonia content is unaltered

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77b45bf1465b10e0d766b8a63d1990b8
https://pubmed.ncbi.nlm.nih.gov/5503240