LC/MS Analysis of Illicit Bath Salts on Ascentisยฎ Express HILIC, Set 3
Materials
used together
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4-Fluoromethcathinone hydrochloride solution
1.0 mg/mL in methanol (as free base), ampule of 1 mL, certified reference material, Cerilliantยฎ3-Fluoromethcathinone hydrochloride solution
1.0 mg/mL in methanol (as free base), ampule of 1 mL, certified reference material, Cerilliantยฎ4-Methylethcathinone hydrochloride solution
1.0 mg/mL in methanol (as free base), ampule of 1 mL, certified reference material, CerilliantยฎPentedrone hydrochloride
1.0 mg/mL in methanol (as free base), ampule of 1 mL, certified reference material, CerilliantยฎCONDITIONS
column
Ascentis Express HILIC, 10 cm x 2.1 mm I.D., 2.7 μm particles (53939-U)
mobile phase
[A] 5 mM ammonium formate in acetonitrile; [B] water; (98:2, A:B)
flow rate
0.6 mL/min
pressure
267 psi (18.4 bar)
column temp.
35 ยฐC
detector
MS, ESI(+) TOF, Summed Ion Chromatogram
injection
2 μL
sample
500 ng/mL in acetonitrile
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HILIC mode operation on an Ascentis Express column provided baseline resolution of these bath salts, including isobaric compounds. The highest quality LC-MS solvents were used to supply low background interference and low particulate contaminants for robust; trouble-free operation. Cerilliant CRMs provided reliable identification and quantification.
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Ascentis is a registered trademark of Merck KGaA, Darmstadt, Germany