Ratchapon Mingkhwan

Validation and verification method of Halogen using Ion chromatography. Validation method for analysis of liquid vitamin A in raw material and final product using HPLC. Analysis of halogen (fluoride, chloride, bromide and iodide) in raw materials using Ion chromatography.

Chemist - SGS Thailand Limited - Thailand

(2017-12 - 2023-06)

• Validation and verification method of Halogen using Ion chromatography.
• Validation method for analysis of liquid vitamin A in raw material and final product using HPLC.
• Analysis of halogen (fluoride, chloride, bromide and iodide) in raw materials using Ion chromatography.
• Analysis of phenol, cyanide and surfactant in water and wastewater using spectrophotometry.
• Analysis of total organic carbon (TOC) in drinking water and process water using TOC analyzer.
• Method validation.
• Method verification.
• Verification of instruments and glassware.

RD & QC technician - Callington Thailand Limited - Thailand

(2023-12 - 2025-12)

• Research and development of non-destructive testing (NDT) products for MT and PT.
• Metal working fluid (MWF) for quality control and solving off spec product.
• Trial product with sale team and solving the problem and report to customer.
• Trial new product after testing new formulation in lab with sale team and solving the problem for customer.
• Customer service support such as SDS, TDS and COA.
• Audit production process.
• Checking COA from QC testing convert to certificates of conformity (COC).
• Extension shelf life of product and raw material.
• Sourcing new raw material in Thailand.
• Inspection of new product import to Thailand.

Chemist RD - Sherwin-Williams Thailand Limited - Thailand

(2026-01)

• Create COA for finish goods of coating.
• QC check for new batch of coating.
• Extension shelf life of coating for customer.
• Modify the formula for solving problem and testing alternative raw material.
• Support technical team, sale team and regulatory affairs.

Bachelor's degree - Science and technology, Major of chemical technology - Suan Dusit University (2017)