“…This ion source proved suitable for the selective ionization of analytes by optimizing the wavelength of the light source, and the obtained limit of detection (LOD) values were all below 100 pg/μL. In fragrance analysis, GC was interfaced/coupled usually with quadrupoles (Q) [ 167 , 168 , 169 , 170 , 171 , 172 , 173 , 174 , 175 , 176 , 177 , 178 , 179 , 180 , 181 , 182 , 183 , 184 ], ion traps (IT) [ 153 , 157 , 185 , 186 , 187 ], and a few cases with time-of-flight (TOF) [ 148 , 188 ] mass analyzers, and in some situations, MS/MS analysis was also performed [ 107 , 189 ] for fragrance fingerprints. MS data acquisition was achieved typically in scan mode (full scan mode in different mass ranges) [ 190 ] selected ion monitoring (SIM)—in order to distinguish target fragrance, with known MS features and maximum sensitivity, making it ideal for quantification and validation [ 31 , 107 , 152 , 155 , 156 , 158 , 159 , 160 , 163 , 165 , 170 , 188 ], selected reaction monitoring (SRM)/multiple reaction monitoring (MRM) (resulting in increased selectivity, sensitivity, and signal/noise ratio [ 107 , 189 ...…”