𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Study of laser desorption/ionization time-of-flight mass spectrometry for the analysis of pesticides

✍ Scribed by M. Benazouz; B. Hakim; J. L. Debrun


Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
67 KB
Volume
12
Category
Article
ISSN
0951-4198

No coin nor oath required. For personal study only.

✦ Synopsis


Direct desorption/ionization (no matrix) and matrix-assisted laser desorption/ionization (MALDI) were tested for the analysis of four pesticides, aldicarb, aminotriazole, dinoterb and ioxynil, at the 0.1 mg/L level in water. Only MALDI provided good sensitivities, except for aldicarb. The most interesting result is that quantitative analysis of aminotriazole at the required level should be feasible using MALDI, which is not possible using standard methods, at the present time.


πŸ“œ SIMILAR VOLUMES


Quantitative analysis of antibiotics by
✍ Yong-Chien Ling; Lihnian Lin; Yi-Ting Chen πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 242 KB πŸ‘ 2 views

Comparative studies of the matrix-assisted laser desorption/ionization (MALDI) of 30 antibiotics were made using a-cyano-4-hydroxycinnamic acid (HCCA), 2,5-dihydroxybenzoic acid (DHB), 5,10,15,20tetrakis(4-hydroxyphenyl)-21H,23H-porphyrin and meso-tetra(N-methyl-4-pyridyl)porphyrin matrices. Most an

Characterization of fungal spores by las
✍ K. J. Welham; M. A. Domin; K. Johnson; L. Jones; D. S. Ashton πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 121 KB πŸ‘ 2 views

A considerable volume of research has now been completed on the application of matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) to the analysis of bacteria; however, to date no definitive studies have been made using this technique on fungi. Preliminary studies on the applica

Reproducibility of matrix-assisted laser
✍ Adam J. Saenz; Catherine E. Petersen; Nancy B. Valentine; Stephanie L. Gantt; Kr πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 152 KB πŸ‘ 2 views

## Matrix -assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS) was used to demonstrate the reproducibility of bacterial spectra collected on different days. The reproducibility of analysis by MALDI-MS of intact Escherichia coli and Bacillus atrophaeus is presented a

Ionization mechanism of oligonucleotides
✍ Yufei Kong; Yifei Zhu; Jing-Yuan Zhang πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 171 KB πŸ‘ 2 views

The ionization of nucleosides in matrix-assisted laser desorption/ionization time-of-flight mass spectrometry was systematically investigated using adenine (A), thymine (T), guanine (G) and cytosine (C) with several common matrices. Experimental results of the protonation and deprotonation of the ba

Matrix-assisted laser desorption/ionizat
✍ Polo, Lenore M.; Limbach, Patrick A. πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 115 KB πŸ‘ 2 views

RNase H is an endonuclease which cleaves RNA at points of hybridization with DNA. However, certain ambiguities exist in terms of its speciÐcity and location of cleavage along the RNA strand. The analysis of RNase H reaction products of an oligoribonucleotide hairpin by matrix-assisted laser desorpti