Amine labeling

Note Alarms and shutdowns as shown are not to be considered as meeting any minimum safety requirement but are shown as representative of types used for controi systems. Schematic Alarm/Shutdown Hydrocarbon Low Pressure Hot oil or Glycol Amine Label Description Line Heater Reboiler Steam Heater Salt Heater Reboiler Reboiler ... 

The reduction of oxime derivatives (section IV-C) is useful for the preparation of steroidal amines labeled with a deuterium on the nitrogen-bearing carbon atom... 

The newest type of KIE that has been used to characterize the transition state of the Menshutkin reaction is a secondary incoming nucleophile deuterium KIE. These KIEs are measured by using primary amines labelled with deuterium at the nitrogen of the nucleophile [reaction (25)]. 

When cyclopropylcarbinyl amine labeled with 14C in the 4-position is deaminated, the label is found to be scrambled in the products so that the three methylene groups have almost—but not quite—achieved equivalence. The... 

Results with 13C6-labelled glucose implied that asparagine is the source of the carbon atoms of acrylamide. Similarly, there was 98.6% incorporation of 15N-amide-labelled asparagine into acrylamide and no incorporation of 15N-a-amine-labelled asparagine. 

FIGURE 7. 13C NMR of eopentyl ithium-6Li, 0.7 M, with TMTAN, 1.4 M, at different temperatures, triamine part only. Resonances of complex labeled C, those of free amine labeled F. Reprinted with permission from Reference 20. Copyright (1990) American Chemical Society... 

Amines labelled with positron-emitting nuclides (11C, 13N, 18F) combined with PET are useful for external measurement of the rate of transport, metabolism and excretion of a number of substances in humans and animals, and were used for various aims. After a detailed study of the organ distribution and the metabolic fate of the 13N-amines, 13N-/ -phenethylamine, 13N- -octylamine and 13N-3,4-dimethoxyphenethylamine, a general transformation path of amines in vivo has been formulated292 (equation 130). 

Amines labelled with positron-emitting nuclides ( C, F) combined with PET... 

CEC, a hybrid separation technique of CE and HPLC, potentially combines the high efficiency of CE and the selectivity and versatility of HPLC. CEC was coupled with Ru(bpy)3 " ECL detection by Xu s group for the first time. Proline, putrescine, spermidine, and spermine were separated efficiently by this method at pH range of 3.5-7.0 of the mobile phase. The proposed detection scheme offers a powerful tool for analysis since CEC generally displays better resolution than CZE for neutral analytes and charged analytes with equal electrophoretic mobilities [69]. Dual-cloud point extraction (dCPE) and tertiary amine labeling has been used for sensitive and selective detection of two auxins employing CE-ECL. The proposed method shows feasibility to the detection of the two auxins in acacia tender leaves, buds, and bean sprout and the detection limits (S/N = 3) were 2.5 and 2.8 nM for indole-3-acetic acid (lAA) and indole-3-butyric acid (IBA), respectively. The proposed method was applied effectively to the detection of the two auxins in real samples [70]. 

Yin X-B, Guo J-M, Wei W (2010) Dual-cloud point extraction and tertiary amine labeling for selective and sensitive capillary electrophoresis-electrochemiluminescent detection of auxins. J Chromatogr A 1217(8) 1399-1406. doi 10.1016/j.chroma.2009.12.029... 

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