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US 5,343,770 AGranted
Automatic sample introducer for analyzer
AssigneeShimadzu Corporation
InventorsAkinori Seidoh, Youzo Morita, Hiroaki Matsuhisa
Life of this patent
Estimating the term…
Abstract
A sampling needle and a ventilation pretreatment needle for sparging out a gas containing no carbon component are mounted on the same arm mechanism to be simultaneously driven. The sampling needle is adapted to introduce samples as well as to distributively inject acid into sample containers. The ventilation pretreatment needle is adapted to stir samples during sampling as well as to pretreat next samples during analysis.
Claims17
A sample introducer, comprising:
- a support;
- a sample table accommodated on said support, said sample table capable of accommodating a plurality of sample containers and moving said sample containers to a prescribed sampling position, said sample table capable of accommodating both sample containers having dimensions for simultaneously receiving both a sampling needle and a ventilation pretreatment needle, and sample containers having dimensions for receiving only one of the needles;
- a washing port accommodated on said support;
- an arm mechanism accommodated on said support;
- a sampling needle supported for movement by said arm mechanism;
- a ventilation pretreatment needle supported for movement on said arm mechanism for sparging the sample containers, said arm mechanism provided for inserting the needles into said sample containers provided on said sample table and, alternatively, said washing port, and for moving said needles back and forth between said sampling position and said washing port;
- a sparging gas supply fluidly connected to said ventilation pretreatment needle;
- and
- a sample supply mechanism for withdrawing liquids from said sample containers through said sampling needle by suction and supplying said liquids to other equipment.
6 more elements
A sample introducer, comprising:
- a support;
- a liquid vessel accommodated on the support, said liquid vessel having an ultrasonic vibrator in a specific position;
- a sample table accommodated on said support, said sample table configured for accommodating a plurality of sample containers and for dipping and moving said sample containers in said liquid vessel;
- reflecting walls mounted on said sample table for dividing said liquid vessel into a plurality of regions each having dimensions for accommodating at least one said sample container;
- a linsing port accommodated on said support;
- an arm mechanism accommodated on said support;
- a sampling needle supported for movement by said arm mechanism;
- a ventilation pretreatment needle supported for movement by said arm mechanism for sparging the sample containers, said arm mechanism provided for inserting the needles into said sample containers provided on said sample table and, alternatively, said linsing port, and for moving said needles back and forth between said sampling position and said linsing port;
- a sparging gas supply fluidly connected to said ventilation pretreatment needle;
- and
- a sample supply mechanism for withdrawing liquids from said sample containers through said sampling needle by suction and supplying said liquids to other equipment.
8 more elements
A sample introducer, comprising:
- a support;
- a sample table accommodated on said support, said sample table capable of accommodating a plurality of sample containers and move the sample containers to a prescribed sampling position;
- a washing port accommodated on aid support;
- an actuating arm accommodated on said support;
- a sampling needle for sampling the sample containers, said sampling needle supported for movement by said actuating arm;
- a ventilation pretreatment needle for sparging the sample containers, said ventilation pretreatment needle supported for movement on said actuating arm;
- a sparging gas supply fluidly connected to said ventilation pretreatment needle;
- a mechanism accommodated on said support for manipulating said actuating arm for inserting the needles into said sample containers provided on said sample table and, alternatively, said washing port, and for moving said needles back and forth between said sampling position and said washing port;
- and
- a sample supply mechanism for withdrawing liquids from said sample containers through said sampling needle by suction and supplying said liquids to other equipment.
7 more elements
A sample introducer, comprising:
- a support;
- a sample table supported for movement on said support, said sample table configured for accommodating sample containers and for moving the sample containers to a sampling position;
- a linsing port accommodated on said support;
- an arm mechanism supported for movement on said support;
- a sampling needle for sampling the sample containers, said sampling needle supported for movement on said arm mechanism;
- a sparging needle for supplying sparging gas to the sample containers, said sparging needle supported for movement on said arm mechanism, and said sparging needle positioned adjacent said sampling needle and moved together by said arm mechanism between said sampling position and said linsing port;
- a sparging gas supply fluidly connected to said ventilation pretreatment needle;
- and
- a sample supply mechanism for withdrawing liquids from said sample containers through said sampling needle by suction and supplying said liquids to other equipment.
6 more elements
Dependencies are inferred from the claim text.