Plating solution analysis system and dosing device

Abstract

The invention relates to a plating solution analysis system and a dosing device, which comprise a small-capacity automatic controllable precision injector, a large-capacity automatic controllable precision injector, a first automatic controllable multi-way valve, a second automatic controllable multi-way valve and a multi-port switching valve, and the small-capacity automatic controllable precision injector and the large-capacity automatic controllable precision injector can pass through the multi-port switching valve. And one of the public channel of the first automatic controllable multi-way valve and the public channel of the second automatic controllable multi-way valve is selected to be connected. The dosing device can fully utilize the configuration of the large injector and the small injector, so that the large injector and the small injector are responsible for filling liquid medicine with corresponding volumes, the dosing efficiency is higher, and the automatic analysis time is shortened. Moreover, the dosing device can fully utilize the number of channels of the first automatic controllable multi-way valve and the second automatic controllable multi-way valve, so that more samples can be automatically tested at one time.

Description

technical field [0001] The present application relates to the technical field of plating solution analysis, in particular to a plating solution analysis system and a dosing device. Background technique [0002] At present, the concentration analysis of the components of the plating solution, especially the concentration analysis of the additives of the plating solution, is most commonly used by Cyclic Voltammetry Stripping (CVS technology for short). The technique determines the concentration of a sample by measuring its response to the deposition rate of electroplating on a rotating disk electrode. [0003] The general steps for using CVS technology are: [0004] 1) Prepare a cup (for example, 100ml) of a support solution, which is usually an additive-free electroplating mother solution or a plating solution containing a specific additive with a known concentration; [0005] 2) Set the CVS technical parameters, and test the electroplating deposition rate index of the supp...

AI Technical Summary

Problems solved by technology

[0014] The first solution needs to prepare more than ten cups of support solution in advance, which is labor-intensive; configuring the corresponding support solution on the software also requires the knowledge and care of technicians; the large turntable takes up space and makes the instrument look cumbersome;

[0015] The second solution requires a lot of precision syringes to realize the automatic analysis of multiple components of the plating solution, and precision syringes are very expensive

When the first automatic controllable multi-way valve and the second automatic controllable multi-way valve adopt the same multi-way valve, that is, the number of channels of the two multi-way valves is the same (for example, the first automatic controllable multi-way valve and the second automatic controllable multi-way valve The number of channels of the controllable multi-way valve is 8), and when the number of samples to be analyzed is large, the following situation may exist: the first automatic controllable multi-way valve that cooperates with a small-capacity precision syringe and is responsible for adding samples / medicine The number of channels that the valve can provide cannot meet the test requirements of a large number of samples, while the number of channels that can be provided by the second automatic controllable multi-way valve that is matched with a large-capacity precision syringe and is responsible for adding support solution (electroplating mother solution) exceeds This will cause the channels of the two multi-way valves to not be fully utilized during the automatic test, and the number of samples that can be arranged for automatic testing at one time is completely controlled by the first automatic controllable multi-way valve. The number of channels of the through valve is limited

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