| CPC G01N 1/4077 (2013.01) [G01N 2001/4088 (2013.01)] | 8 Claims |
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1. A sample preprocessor where a sample liquid is filtered to capture a predetermined component on a filter and which concentrates the sample liquid, the sample preprocessor comprising:
a connection mechanism that connects a sample container and a suction source, the sample container including a bottle that stores a sample liquid and a cartridge that has a tubular shape, has a proximal end side attached to the bottle, and has the filter provided therein, wherein
part of the sample liquid that has been concentrated through filtering is left above the filter of the cartridge and is accommodated in contact with a side wall of the cartridge and a surface of the filter, and
the connection mechanism includes:
a suction terminal into which a distal end side of the cartridge is inserted, wherein the suction terminal connects the distal end side of the cartridge and the suction source and sucks the sample liquid in the sample container,
an attachment surface that the bottle is attached to and arranges the cartridge in a predetermined position relative to the suction terminal,
a terminal plate where the suction terminal is provided, and
a positioning stage that is secured in a position at a predetermined distance from the terminal plate and on which the attachment surface is formed,
the positioning stage includes an insertion hole formed in a position opposite the suction terminal, the cartridge being inserted into the insertion hole,
an abutting surface abuts on a proximal end surface of the cartridge and prevents further intrusion of the cartridge into the bottle, and
the cartridge is inserted into the suction terminal through the insertion hole by placing the bottom of the bottle on the attachment surface with a base end face of the cartridge in contact with the abutting surface.
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