Method for determining multiple brightening agents in nickel plating solution

A technology of brightener and nickel plating, which is applied in the field of liquid chromatography analysis, can solve problems such as the inability to examine the content of brightener and the reasonable compatibility of brightener, and achieve the effects of increasing quality control capabilities, shortening measurement time, and reducing testing investment
CN1844910AInactive Publication Date: 2006-10-11NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
Publication Date
2006-10-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an analyze method used to detect multi brighteners of bright nickel plated liquid, when there are multi organic additives, as brightener, accelerator, restrainer, and smoothen agent, etc. The inventive method is based on the high-efficiency liquid phase spectrum analysis of brightener, with high accuracy and better repeatedly property.
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Description

technical field

[0001] The present invention relates to a liquid chromatography analysis method, in particular, the present invention relates to a method for accurately and reproducibly determining The method of various brighteners in the bright nickel plating bath. technical background

[0002] NdFeB magnetic material is the third generation permanent magnet material. NdFeB permanent magnets are being rapidly developed and widely used due to their excellent performance, abundant raw materials and reasonable prices. It is mainly used in high-tech fields such as micro-motor, permanent magnet instrument, electronics industry, automobile industry, petrochemical industry, nuclear magnetic resonance device, audio equipment, magnetic levitation system, magnetic transmission mechanism and magnetic therapy equipment.

[0003] However, due to the chemical properties of the NdFeB magnet itself, its corrosion resistance is poor, so its surface usually needs to be electroplated. Afte...

Claims

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