JPS6123938A - Sample distributing device - Google Patents

Abstract

PURPOSE:To distribute samples accurately through simple operation by providing a sample container, an excessive sample container, and plural distribution containers, and connecting them through piping and valves. CONSTITUTION:All main valves 2, 3, 12, 22, 32, and 42 are closed while the sample container 1 contains a liquid sample. Then, the main valve 3 is opened to fill pipes 51-54 with the liquid sample and an excessive sample is recovered in the excessive sample recovery container 11 by opening the main valve 12. In this state, there is no sample in the pipe 51. Then, the main valves 22, 32, and 42 are opened successively to distribute a specific amount of the sample to the distribution containers 21, 31, and 41.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for dispensing toxic liquid samples in small portions.

An example of a conventional sample dispensing device is shown in FIG. The liquid sample in the sample container 1 is dripped into the distribution container 21 in minute amounts by gradually opening the control valve 4.

However, in this case, if the control valve 4 is opened too much, the sample will drip excessively, resulting in the distribution container 21 being overfilled. Furthermore, in the case of this system, when distributing to a plurality of distribution containers 21, it is necessary to repeatedly attach and detach the distribution containers 21 and perform the above operations, making the operation complicated and time-consuming.

An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to provide a sample dispensing device that can accurately dispense a sample with simple operation.

A fixed amount of sample can be controlled by opening and closing only the stop valve without dropping the sample using a control valve. Furthermore, multiple sample distribution containers were installed so that the amount of sample corresponding to the volume of the piping above the main valve could be distributed.

FIG. 2 shows an embodiment of the present invention.

Main valves 2 and 3 are installed at both ends of the sample container 1. Further, at the bottom thereof, a surplus sample collection container is connected via the main valve 12.
Distributing containers 21, 31 via the disconnected main valves 22, 32, 42
．． 41 is installed.

With the liquid sample contained in the sample container 1, all main valves (2, 3, 12, 22, 32, 42) are kept closed. Thereafter, the main valve 3 is opened and the pipes 51 to 54 are filled with the liquid sample. Thereafter, the remaining sample is collected into the remaining sample collection container 11 by opening the main valve 12. In this state, pipe 5
There is no sample within 1. By sequentially opening the main valves 22, 32 and 42, a predetermined amount of sample is delivered to the distribution container 21°3.
1.41 will be distributed.

According to the present invention, a predetermined amount of sample can be dispensed with a simple operation, and there is no loss of operating time due to redoing the operation.

[Brief explanation of the drawing]

Figure 1 is a schematic system diagram showing a conventional example of a sample dispensing device;
The figure is a schematic system diagram showing an embodiment of the present invention.

Claims (1)

[Claims] 1. A sample dispensing device for dispensing a toxic liquid sample in small quantities, comprising at least one sample container, a surplus sample collection container, and a plurality of distribution containers, which are connected by piping and valves. .