Detection systems bonding

INADEQUATE Incredible natural abundance double quantum transfer experiment, segregates AB or AX systems due to homonuclear one-bond couplings of less abundant nuclei, e.g. I3C-l3C CC INADEQUATE detects CC bonds (carbon skeleton) present in the sample... 

Nucleic acid hybridization is based on the precise nucleotide base pairing and hydrogen bonding between one string of nucleotides and a complementary nucleotide sequence. Any diagnostic nucleic acid hybridization test has three essential elements the DNA probe, the target DNA and the signal detection system. Recent developments in detection systems and improvements in safety have enabled... 

The secondary ion current (Im) of chemical species m is collectively determined by the primary ion flux (Ip), the sputter yield (Ym) and the ionization probability. a+ represents the probability for positive ions, 9m is the fractional concentration of species m in the surface layer and rj is the transmission of the detection system. The transmission is defined as the ratio of the ions detected to ions emitted, and it varies from 0 to 1 depending on the analyzer. The sensitivity of SIMS to element m is controlled by the factors Ym, a+ and rj. Ym generally increases with beam energy and with the primary ion mass. It also varies with the types of atomic bonding in target samples. 

The presence of different double bonds and carbonyls in the molecule permits adequate monitoring of the separation at 230 nm, but other detection systems have also been used [3],... 

Analytical derivatization reactions can be implemented in integrated sorption-detection systems by using reagents immobilized (bonded or ab-... 

The most popular detection system used in the HPLC of phospholipids uses UV absorbance at wavelengths between 200 and 206 nm. The absorbance of Upids at this wavelength is mostly due to the presence of carbon-carbon double bonds, although other groups may contribute to a lesser degree. 

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