Genotoxic substances are substances that can directly or indirectly damage cellular DNA,cause gene mutation or mutugenesis in vivo,have carcinogenic potential or tendency,are characterized by damage t
Single particle aerosol mass spectrometry can effectively analyze the chemical composition of metals,organic and inorganic in individual particles[1~4].
Traditional degradation methods for N-nitrosamines are either confined with acid solution1,2 or required for additional chemical reagents3 to guarantee high reaction efficiency.
Imaging of cholesterol and other metabolites simultaneously by ambient mass spectrometry will greatly benefit biological studies,however,it still remains challenging.
The rapid analysis and accurate identification of bacteria have always been crucial issues in many fields,including clinical diagnosis,biotechnology and food safety[1;2].
Mass Spectrometry with soft Photo-Ionisation(PIMS)1 enables the direct detection of trace molecules in complex organic vapours as well as in pyrolysis or combustion off-gases.
Fatty acid esters of hydroxy fatty acids(FAHFAs)are a new class of lipid mediators with promising anti-diabetic and anti-inflammatory properties [1-2].