HPLC Method for Analysis of Tribenzylamine in Copper Plating Bath Solution on Zodiac HST B Column

Tribenzylamine (TBA) is an organic compound belonging to the triarylamine class. It is sometimes employed in the formulation of electrolyte solutions for copper plating processes.

Function in Copper Plating:
In copper electroplating, TBA acts as a leveler or brightener, enhancing the quality of the plated surface. These additives improve the finish by promoting uniform metal ion deposition, leading to a smoother and more lustrous coating.

TBA is typically used alongside components like:

• Copper sulfate (source of copper ions)

• Sulfuric acid (enhances bath conductivity and pH control)

• Other bath additives for optimizing deposition properties.

Additional Applications:
Tribenzylamine is also used as a reagent in organic synthesis, playing a role in the preparation of more complex organic compounds.

Analytical Method:
Tribenzylamine can be retained and analyzed using a Zodiac HST B mixed-mode column (4.6 × 150 mm, 5 µm, 100 Å). The isocratic mobile phase consists of water, acetonitrile (MeCN), and sulfuric acid as a buffer. Detection is carried out at UV 200 nm.

Limit of Detection (LOD):
The LOD for this setup depends on the instrument, method, and analyte specifics, and may vary between laboratories, even when using similar analysis techniques.