Hydroxyethylstarches (HES) Augsten, C; Mäder, K
LC GC North America,
02/2007
FEV
Magazine Article, Trade Publication Article
The values covered a range from approx. 2OkDa to approx. 60OkDa and up to 2GDa in size, depending on the characterized HES type. ... due average molar mass value was mainly infl uenced by high molar ...mass fractions.
Celotno besedilo
Dostopno za:
CEKLJ, DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, UILJ, UKNU, UL, UM, UPUK
A modified {scBradford} method for determination of plant protein is proposed using 0.003% sodium dodecyl sulfate and 0.005% Acid blue 90 (Serva blue G). The method exhibits high specificity and ...simple applicability but allows also quantitative protein determination nearly independently of the nature of protein.
121 hospitalised patients with electrophysiologically ascertained sick sinus syndrome were ambulatorily observed for two and a half years. The knowledge of the electrophysiological parameters allowed ...in every case an exact estimation of the degree of severity. Patients with preponderantly isolated disturbance of the sino-atrial node automatism, the sino-atrial conduction and the nervous regulation (patients with carotid sinus syndrome) as well as the majority of patients with bradycardia-tachycardia-syndrome were conservatively treated. Patients with high-degree combined disturbances of the sinus node partial functions were electrically treated. Every cardiac syncope in the medicamentously treated sick sinus node syndrome is the absolute indication for a pacemaker implantation. The further observation in the outpatient department showed that in many patients with symptomatic sick sinus node syndrome an attempt of conservative treatment is justified.
Light-grown as well as dark-grown (etiolated) turions of Spirodela polyrhiza are positively photoblastic. The phytochrome-mediated germination response requires supply with exogenous calcium (Ca2+). ...Threshold value is 1.3 ± 0.3 µM Ca2+, half-maximal response is mediated by 16 ±2 µM Ca2+. Ca2+ may be replaced in part by Sr2+, but not by Mg2+ . Furthermore, the addition of the Ca2+-antagonists La3+ and Co2+ causes a complete inhibition of germination. Delayed addition of La3+ up to 72 h after the red light pulse results in a decreased, but still significant inhibition. Germination is also inhibited by the Ca2+-channel blocker verapamil. On the other hand, stimulation of germination is observed without red light pulses if the Ca2+-ionophore A 23187 is applied for 24 h. Complete inhibition of germination is caused by the calmodulin inhibitors chlorpromazine and trifluoperazine, and, besides, calmodulin was detected in the turions.
Consequently, Ca2+ as well as calmodulin are involved in the phytochrome-mediated germination response of turions.
Irradiation with light of different wavelengths (white, red and blue light, respectively) during the plant cultivation in steady state conditions do not influence the amino acid composition of the ...soluble1 proteins.
Maintaining the advantages of the common BRADFORD method for protein determination its lependence on the nature of the standard protein is overcome by including the ninhydrin reaction tsing an amino acid analyzer. An a ddition of small amounts of Triton X-100 prevents the formation ,if the known troublesome coloured precipitates on the measuring cuvettes.
