Fortunately, this lab's practices are well outside the mainstream. As the ASCLD/LAB report stated, The laboratory’s approach of using distorted
extracted ion profile ratios coupled with an abbreviated selection of target compounds for identification of gasoline in case data dominated
by the sample matrix, as described by analysts in interviews and alluded to in the data provided in the case files reviewed,

IS NOT ACCEPTED IN THE SCIENTIFIC COMMUNITY.

There is only one private lab of which I am aware that believes this practice is acceptable.

John Lentini, CFI, D-ABC
Fire Investigation Consultant
Florida Keys
[www.firescientist.com]