. Author manuscript; available in PMC: 2014 Sep 1.

Published in final edited form as: Int J Ion Mobil Spectrom. 2013 May 25;16(3):217–227. doi: 10.1007/s12127-013-0135-3

Table 2.

Experimental results for halogen anions important for water quality. Samples concentrations were in the 1–10 ppm range, diluted in 50/50 acetonitrile / water. Bromate (BrO³⁻) is a common result of water treatment. Ion identities were determined by DMS-MS. Formate occurs as an anion and a proton-bound dimer. Acetate is not distinguished from ACN under these conditions. Data was taken on the offline emitter system without additional desolvation of Figure 2 (left). This results in some signal instability that is avoided in the reaction chamber design.

Sample	Ion	CoV(500 V SV)	CoV(550 V SV)	CoV(600 V SV)
Chloride	Cl⁻	−15.5 V	−20.2 V	weak
Fluoride	(H2O)F⁻	−10.6 V		−16.9 V
Bromate	BrO3⁻	−3 V		−4.8 V
Formate	CHO2⁻, ((CHO2)2H)⁻			−12 V, −4.4 V
Acetate		−12.3 V		−19.5 V
ACN/water only	CH3CN⁻	−12.3 V		−19.5 V