Abstract

Poster Presentations

Day 3, May 17（Fri.）　　Room P (Multi-purpose Hall)

3P-01　　PDF

Component Profiling in Agricultural Applications Using an Adjustable Acupuncture Needle for Sheath-Flow Probe Electrospray Ionization/Mass Spectrometry

(¹Univ. Yamanashi, ²Loughborough Univ., ³Kyushu Okinawa Agric. Ce., ⁴Central Reg. Agric. Res. Ce., ⁵Ehime Univ.)
^oKenzo Hiraoka¹, Stephanie Rankin-turner², Satoshi Ninomiya¹, Hiroshi Wada³, Hiroshi Nakano³, Masaya Matsumura³, Sachiyo Sanada-morimura³, Fukuyo Tanaka⁴, Hiroshi Nonami⁵

The sample was pricked with an acupuncture needle inserted in the sf-PESI probe that protruded from the terminus of the tip by 5 mm. The invasion depth of the needle into the sample was ca. 1 mm. After sampling, the needle was retracted into the solvent-preloaded capillary with a protrusion length of 0.1 mm from the tip. A mass spectrum of sample captured on the needle was obtained by applying a high voltage to the needle. This method could be applicable to profiling analysis of plants with epicuticular wax covering on the surfaces that are difficult to analyze by sf-PESI. The on-site mass spectrometric analysis for a growing apricot in the field was made to monitor the developing stage of the fruit.