US 6,046,805 A · Method and apparatus for transfusing liquid specimen for optical characteristic measurement and polarimeter using the same

Abstract

An apparatus and a method for transfusing liquid specimen for an optical characteristic measurement, which is excellent in operability and handling, and capable of introducing a liquid specimen into a sample cell without detaching the cell from an optical characteristic measurement apparatus and without bubbling, as well as a polarimeter are disclosed. According to the present invention, the specimen can be introduced into the sample cell without detaching the sample cell from the equipment, in a way of connecting the bottom of the sample cell with a reservoir for temporarily accommodating the liquid specimen through a tubular path, then varying a difference in the levels of the sample cell and the reservoir, or a way of using a syringe arranged in the tubular path. At expelling the specimen from the sample cell, the specimen is transfused into the reservoir in a similar manner.

Claims21

Dependent claims

A method for transfusing a liquid specimen for an optical characteristic measurement including the steps of:

preparing an optical characteristic measurement apparatus comprising,
a reservoir for temporarily accommodating a liquid specimen to be measured,
a sample cell for holding said specimen and for permitting a projected light to transmit through the held specimen, and
a tubular path for connecting between said sample cell at the portion being in contact with the held specimen and said reservoir;
supplying the specimen accommodated in the reservoir into said reservoir;
allowing the reservoir to stand for a certain time;
and
introducing the specimen accommodated in said reservoir into said sample cell through said tubular path.

5 more elements

An apparatus for transfusing a liquid specimen for an optical characteristic measurement comprising;

a reservoir for temporarily accommodating a liquid specimen to be measured;
a sample cell for holding said specimen and for permitting a projected light to transmit through the held specimen;
a tubular path for connecting the bottom of said sample cell with said reservoir at a portion to be immersed in said accommodated specimen;
and
an elevator for moving at least one of said reservoir and said sample cell upward and downwards.

2 more elements

An apparatus for transfusing a liquid specimen for an optical characteristic measurement comprising;

a three-way cock whose one channel is connected to a sample cell for holding a liquid specimen to be measured, and a syringe and a reservoir for accommodating the specimen, each connected to one of the other two channels of said three-way cock, respectively.

Dependencies are inferred from the claim text.

Method and apparatus for transfusing liquid specimen for optical characteristic measurement and polarimeter using the same

Life of this patent

Method and apparatus for transfusing liquid specimen for optical characteristic measurement and polarimeter using the same

Life of this patent

Abstract

Claims21