Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Folke Ingman"'
Publikováno v:
Laboratory Automation & Information Management. 34:131-142
A method for the determination of caffeine in coffee and tea samples based on the use of supported liquid membranes coupled to a flow system has been developed. The sample may be analysed both as solid and slurry. In the case of solid sample, this is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33d7cad338dbaa0f31d7b94403bb195b
https://doi.org/10.1016/s1381-141x(99)00015-5
https://doi.org/10.1016/s1381-141x(99)00015-5
Publikováno v:
Process Control and Quality. 11:289-300
The most common procedures for the determination of acids and bases in hydrometallurgical process liquors are reviewed and compared. Automated batch titrations, performed by stepwise addition of titrant and using Gran plots for evaluation are reliabl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::151e1ed59bbff306846bca054be81dd7
https://doi.org/10.1163/156856699750249413
https://doi.org/10.1163/156856699750249413
Publikováno v:
Analytica Chimica Acta. 387:155-164
A method for the evaluation of the amount of nicotine released from Swedish snuff based on the use of supported liquid membranes has been developed. The solid sample is directly placed, with minimal pre-treatment, in the membrane unit and the nicotin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a831253075dd03b44784fe5b0f5e54bf
https://doi.org/10.1016/s0003-2670(99)00077-x
https://doi.org/10.1016/s0003-2670(99)00077-x
Publikováno v:
Talanta. 39:95-99
A simple dual channel dropping dispenser has been used for the simultaneous introduction of aqueous solutions of sample and reagent directly into a continuous flow of an organic solvent. Each aqueous segment forms an enclosed reaction system, complet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e19c89ad0d959a559d211f1a07b901a
https://doi.org/10.1016/0039-9140(92)80002-u
https://doi.org/10.1016/0039-9140(92)80002-u
Publikováno v:
Bioprocess Engineering. 7:47-51
A Flow Injection Analysis method for determination of the enzyme β-galactosidase produced in a fermentation process has been developed. The analytical range was 10–1000 U/cm3 and the sample throughput was 40 h−1. The FIA set up was connected dir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cee0bb32060af162e0def7314610cd3
https://doi.org/10.1007/bf00383578
https://doi.org/10.1007/bf00383578
Autor:
Folke Ingman, Vlastimil Kubáň
Publikováno v:
Critical Reviews in Analytical Chemistry. 22:491-518
Several research groups have been actively designing flow systems for automatic or semiautomatic liquid-liquid extraction, most of them using air-segmented flow systems. The first application of liquid-liquid extraction in flow injection analysis (HA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4d5629dbaba629a6ef21b368b6005ca
https://doi.org/10.1080/10408349108055025
https://doi.org/10.1080/10408349108055025
Autor:
Vlastimil Kuban, Folke Ingman
Publikováno v:
Analytica Chimica Acta. 245:251-257
A simple dual-channel dropping segmenter was used for the simultaneous introduction of aqueous solutions of a sample and an organic analytical reagent directly into a continuous flow of an immiscible organic solvent. Droplets of precisely defined vol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c83026acffef2c49f8f21c8a1b08f261
https://doi.org/10.1016/s0003-2670(00)80229-9
https://doi.org/10.1016/s0003-2670(00)80229-9
Publikováno v:
Analytical Chemistry. 62:2026-2032
The process of the segmentation of two immiscible solvents by newly introduced coaxial segmentors of different geometry was studied in a continuous liquid-liquid extraction flow system. A fast reading «on-tube» photometric detection system (∼3 ms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56631b7afd4d42781dc4974b910df881
https://doi.org/10.1021/ac00217a024
https://doi.org/10.1021/ac00217a024
Autor:
D. Hay Liem, Folke Ingman, Olav Smidsrød, Supanich Pramatus, Tom Wallin, Mohammad Jawaid, Pathana Phavanantha, Bjørg N. Cyvin, Cha-On Pontchour, Sven J. Cyvin
Publikováno v:
Acta Chemica Scandinavica. :7-14
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35725afa3e84897d0713adc543c92fdd
https://doi.org/10.3891/acta.chem.scand.32a-0007
https://doi.org/10.3891/acta.chem.scand.32a-0007
Publikováno v:
Talanta. 23:781-788
A general method for evaluating titration data for mixtures of acids and for acids in mixture with weak bases is presented. Procedures are given that do not require absolute [H]-data, i.e., relative [H]-data may be used. In most cases a very rough ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab248232b9f9a58e10b570cf71085ffd
https://doi.org/10.1016/0039-9140(76)80087-2
https://doi.org/10.1016/0039-9140(76)80087-2