Stopped flow analysis

M 91] [P 83] The mixing device was tested as a measuring tool for studying fast consecutive reactions and processes [6]. This concerned applications in quench-flow and stopped-flow analysis, where a time resolution of < 1 ms is required. 

Malvin RL, Wilde WS, Sullivan LP (1958) Localisation of nephron transport by stop flow analysis. Am J Physiol 194 135-142... 

The former can be detected by ESR spectroscopy (Fig. 4.5), by spin-trapping with DMPO or by stopped-flow analysis (Chapter 1). 

C15. Chenderovitch, J., Stop-flow analysis of bile secretion. Am. J. Physiol. 214, 86-93 (1968). 

J.A.M. Pulgarm, L.F.G. Bermejo, P.F. Lopez, Sensitive determination of captopril by time-resolved chemiluminescence using the stopped-flow analysis based on potassium permanganate oxidation, Anal. Chim. Acta 546 (2005) 60. 

Specifically, an alkaline aqueous solution of 6,7-dimethyl-8-ribityllumazine contains a mixture of at least five anionic species, namely the exomethylene-type anion with an open chain structure of the position 8 substituent and two diastereomers each of the 5-ring and 6-ring forms arising by intramolecular reaction of the 2 and 3 hydroxyl groups. The hypothesis of an involvement of one of the tricyclic species as intermediates in the biosynthesis of riboflavin is not supported by more recent data. The exomethylene form appears likely to be a late intermediate in the mechanism of lumazine synthase as documented by stopped flow analysis. Moreover, the exomethylene form (31) has been proposed as an early intermediate of the riboflavin synthase reaction. This is supported by the early observation that riboflavin synthase accelerates proton exchange at the position 7 methyl group. 

Use of exchange-inert metals in stopped-flow analysis 367... 

B. J. Compton, J. R. Weber, and W. C. Purdy, Stop-Flow Analysis An Aid in the Diagnosis and Optimization of Continuous-Flow Systems. Anal, Lett, B, 13 (1980) 861. 

Adult dogs Pb acetate, IX i.v., 0.2 or 10 mg/kg, stop-flow analysis Pb-reuptake sites in the renal system Proximal and distal tubular sites were identical proximal tubular reuptake shown with citrate or bicarbonate infusion Victery et al. (1979)... 

Victery, W., Vander, A.J., Mouw, D.R., 1979. Renal handling of lead in dogs stop-flow analysis. Am. J. Physiol. 237, F408-F414. 

FIGURE 18.2 Distribution of ascorbic acid (AA) determinations according to the flow analysis technique used. BI bead injection FAT flow analysis techniques FIA flow injection analysis LOV lab-on-valve MCFIA multicommutated flow injection analysis MPFS multi-pumping flow system MSFIA multisyringe flow injection analysis SIA sequential injection analysis SFA stopped-flow analysis. 

Other flow techniques applied to AA determination are the multicommutated techniques, BI, and stopped-flow analysis. Multicommutated techniques include MCFIA, MSFIA, andMPFS [153]. 

Note A amperometry BI bead injection CL chemiluminescence F fluorescence FAT flow analysis technique HPLC/DAD high-performance liquid chromatography with diode array detector LOD detection limit MCFIA multicommutated flow injection analysis MPFS multipumping flow systems MSFIA multisyringe FIA P potentiometry RSD relative standard deviation SF sampling frequency SFA stopped-flow analysis SP spectrophotometry. 

Since a total antioxidant capacity (TAG) is thought to be one of the basic standards of biological foodstuff values, it is of great interest to develop automated variants of ABTS-based procedures. The methodology of stopped-flow analysis as well as FI analysis or its modifications introduced great possibilities for creating automated tools for these purposes [72,73]. 

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