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Table 1 LC and MS conditions used in AHL detection

From: Effect of the luxI/R gene on AHL-signaling molecules and QS regulatory mechanism in Hafnia alvei H4

LC condition

LC condition

ϕ4.6 × 150 mm, 5 µm (Agilent)

Column temperature

30 °C

Inject volume

6 μL

Mobile phase

Water/acetonitrile

Flow rate

1.0 mL/min

Measurement time

35 min

MS condition

MS

5500 AB SCIEX

Ionization mode

ESI+

Ion source

Turbo spray

Curtain gas (CUR)

20 psi

Ionspray voltage (IS)

5000 V

Temperature (TEM)

450 °C

Ion source gas1 (GS1)

30 psi

Ion source gas2 (GS2)

10 psi

Collision gas (CAD)

Medium

  1. AHL acyl homoserine lactone, LC–MS liquid chromatography–tandem mass spectrometry