Search Results - "Doornbos, D A"

Partial least-squares regression for routine analysis of urinary calculus composition with Fourier transform infrared analysis by Volmer, M, Bolck, A, Wolthers, B G, de Ruiter, A J, Doornbos, D A, van der Slik, W

“…Quantitative assessment of urinary calculus (renal stone) constituents by infrared analysis (IR) is hampered by the need of expert knowledge for spectrum…”
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Development of a laboratory robotic system for automated bioanalytical methods--I. The determination of theophylline in human plasma: a comparison between the robotized and manual method by Hempenius, J, Wieling, J, Jonkman, J H, de Noord, O E, Coenegracht, P M, Doornbos, D A

“…The quality of bioanalytical methods is often determined by the quality of sample preparation. Using a robot for sample treatment may give better results than…”
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Electrochemical detector flow cell based on a rotating disk electrode for continuous flow analysis and high performance liquid chromatography of catecholamines by Oosterhuis, B, Brunt, K, Westerink, B. H. C, Doornbos, D. A

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Development of a laboratory robotic system for automated bioanalytical methods--II. A robot computer program for guarding totally automated bioanalytical methods by Wieling, J, Hempenius, J, Jeuring, H J, Jonkman, J H, Coenegracht, P M, Doornbos, D A

“…The application of fully automated, unattended sample preparation performed by a laboratory robot for the analysis of drugs in biological samples requires the…”
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Remarks on the structure-activity relationship of silver sulfanilamides by Bult, A, Bajema, B L, Boelema, G J, Saene, J J, Doornbos, D A

“…The biological activity of a series of 10 silver sulfanilamides is studied in relation to the physical parameters pK alpha, log K, and the aqueous solubility…”
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Reversed-phase high-performance liquid chromatographic separation of saccharin, caffeine and benzoic acid using non-linear programming by Weyland, J W, Rolink, H, Doornbos, D A

“…A method is described which allows a chromatographic assay to be optimized with respect to the time needed to complete an analysis, while maintaining good…”
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Liquid chromatographic analysis of carboxylic acids using N-(4-aminobutyl)-N-ethylisoluminol as chemiluminescent label: determination of ibuprofen in saliva by Steijger, O M, Lingeman, H, Brinkman, U A, Holthuis, J J, Smilde, A K, Doornbos, D A

“…N-(4-Aminobutyl)-N-ethylisoluminol was used for labelling of carboxylic acids. The derivatization reaction was carried out with 1-hydroxybenzotriazole as…”
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Development and optimization of pharmaceutical formulations using a simplex lattice design by Huisman, R, Van Kamp, H V, Weyland, J W, Doornbos, D A, Bolhuis, G K, Lerk, C F

“…The composition of pharmaceutical formulations is often subject to trial and error. This approach is time consuming and unreliable in finding the best…”
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Microcomputer-controlled determination of dissociation constants of sulfanilamides and stability constants of the related silver complexes by Boelema, G J, Bult, A, Metting, H J, Bajema, B L, Doornbos, D A

“…As a contribution to the structure-activity relationship of silver sulfanilamide complexes, the pKa-values of thirteen sulfanilamides and the log K-values of…”
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Stability constants of metal complexes of L-cysteine, D-penicillamine, N-acetyl-D-penicillamine and some biguanides. Determination of stoichiometric stability constants by an accurate method for pH measurement by Doornbos, D A

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The determination of the acid dissociation constants of L-cysteine, D-penicillamine, N-acetyl-D-penicillamine and some biguanides by an accurate method for pH measurement by Doornbos, D A

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An accurate method for pCH measurement by Doornbos, D A

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The determination of the acid dissociation constants of barbiturates by an accurate method of pH measurement by Doornbos, D A, de Zeeuw, R A

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The determination of the acid dissociation constants of barbiturates by an accurate method of pH measurement. II. Correlations between normal and n-methylated barbiturates by Doornbos, D A, de Zeeuw, R A

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STUDIES ON METAL COMPLEXES OF DRUGS; D-PENICILLAMINE AND N-ACETYL-D-PENICILLAMINE by DOORNBOS, D A, FABER, J S

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The acid strength of the sulfhydryl and ammonium groups in L-cysteine and D-penicillamine; the determination of the micro acid stability constants by Doornbos, D A, Feitsma, M T

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Optimization of a novel two-phase potentiometric titration method of barbiturates with mercury (II). Part II: Experimental evaluation by Coenegracht, P M, Metting, H J, Doornbos, D A

“…A two-phase potentiometric titration procedure of barbiturates with mercury(II) was developed. The composition of the formed mercury-barbiturate complexes was…”
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Optimization of a novel two-phase potentiometric titration method of barbiturates with mercury (II). Part I: Theory by Coenegracht, P M, Metting, H J, Doornbos, D A

“…A two-phase potentiometric titration procedure for barbiturates with mercury(II) was developed. In the new titration procedure the barbituric acid derivative…”
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Complexometric titration of copper, iron and manganese by DOORNBOS, D A, AB, G, FABER, J S

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A new percentage assay for L-cysteine, L-cysteine HCl D-penicillamine, D-penicillamine HCl and N-acetyl-D-penicillamine. A critical evaluation method of a number of assay methods by Doornbos, D A

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