. Author manuscript; available in PMC: 2014 Jul 29.

Published in final edited form as: Anal Chem. 2006 Mar 15;78(6):1774–1779. doi: 10.1021/ac051121q

Table 2.

Efficiency of the Tested ILMs for the UV-MALDI-TOF Detection of Two Model Analytes, SOS and Arixtra

analyte, 40 pmol	reflectron mode	laser energy^a	analyte signal intensity in arbitrary units^b
analyte, 40 pmol	reflectron mode	laser energy^a	DHBB	ImDHB	ImCHCA	PyCHCA	CHCAB
SOS	positive	low	–	–	200, 940	–	100, 120
		high	240, 600	100, 130	340, 1450	–	140, 160
SOS	negative	low	–	–	360, 1600	–	400, 760
		high	230, 1480	300, 380	1690, 2160	–	200, 540
Arixtra	positive	low	–	–	100, 170	–	–
		high	100, 950	–	–	–	–
Arixtra	negative	low	–	–	470, 560	–	–
		high	1200, 2050	100, 160	810, 1180	–	100, 140

Low-energy setting corresponded to the 10% transmission, and high-energy setting corresponded to the 25% transmission of the laser energy.

Signal intensity values are reported for [M + Na]⁺ and [M − Na]⁻ SOS ions, and [M + Na − 2NaSO₃ + 2H]⁺ and [M − Na − 2NaSO₃ + 2H]⁻ ions of Arixtra; absence of an analyte signal is denoted (−).