A method of inductively coupled plasma mass spectrometry(ICP-MS） with Au solvent trapping was established for the simultaneous determination of 7 kinds of heavy metal elements

i.e.chromium

nickel

arsenic

lead

cadmium

antimony and mercury in e-cigarette aerosols.The trapping conditions for e-cigarette aerosols were optimized.The aerosols were trapped with dilute nitric acid solution(5.0%

by volume） containing 2.0 mg/L Au solution.Two impingers were tandemly connected

in which each contained 25.0 mL trapping solution

and the puffing number was 100.Results showed that

seven elements in e cigarette aerosols were trapped effectively.Under the optimal conditions

the calibration curves were linear in the range of 0.3-80 μg/L for Cr

Ni

As

Pb

Cd

and 0.3-10 μg/L for Sb

Hg

with their correlation coefficients(r2) larger than 0.999.The limits of detection(LODs） for seven elements were in the range of 0.69-1.19 ng/100 puffs

and the limits of quantitation were 2.29-3.97 ng/100 puffs.The recoveries ranged from 96.5% to 103% with relative standard deviations(RSD） of 6.6%-14%10 commercial e-cigarettes were determined by this method and the French Standardization

respectively

and the detection results were consistent.Therefore

this method was accurate

reliable

efficient and low-consumption

which could be used for the detection of heavy metals in e cigarette aerosols.