Reni Rosspertiwi

Quality Control Analyst with over 3 years of experience in laboratory operations and chemical analysis. Experienced in conducting sample handling, analytical data evaluation, and operating laboratory instruments, including Gas Chromatography, UV-Visible Spectrophotometry, Fourier Transform Infrared Spectroscopy, and Gel Permeation Chromatography. Familiar with laboratory documentation, SOP implementation, established analytical methods, and quality control procedures.

Detail-oriented, analytical, disciplined, and adaptable.

Quality Control Analyst at PT. Sino Zone Industry Indonesia (2023-04 – 2026-07)

• Performed quality control testing on raw materials, semi-finished, and finished products to ensure compliance with company quality standards and production specifications
• Conducted analytical testing including Acid Value (AV), Iodine Value (IV), Saponification Value (SV), Moisture Content, Saponification Equivalent (SE), Melting Point, Freezing Point, and Color analysis
• Performed methanol quality analysis including density, water solubility, and permanganate time testing
• Performed testing on hardness, alkalinity, chloride, conductivity, turbidity, and pH in Reverse Osmosis and Cooling Water Systems
• Performed analytical testing of glycerin samples, including glycerol content determination using an Anton Paar instrument, Acidity analysis, and Saponification Equivalent (SE) testing in accordance with established laboratory procedures
• Operated Gas Chromatography (GC) for hydrogen gas testing and Fatty Acid Content (%FAC) analysis
• Handled sampling and inspection of raw materials (RBDPO, RBDPS, PFAD, Methanol, CPO and RBD Olein) and finished products (Acid oil, HPS in flakes/liquid dan Stearic Acid) in accordance with laboratory SOP and safety procedures
• Prepared laboratory reagents and make indicators while ensuring accurate chemical handling and documentation
• Maintained accurate laboratory records, reagent inventory, equipment monitoring, and testing documentation to support audit readiness and quality assurance compliance
• Supported laboratory cleanliness, safety compliance, and operational efficiency in accordance with GMP and company standards

Chemical Lab Analyst at National Research and Innovation Agency (BRIN) (2021-09 – 2022-05)

• Conducted synthesis and characterization tests for low-molecular-weight irradiated chitosan using Gel Permeation Chromatography (GPC) and Fourier Transform Infrared (FTIR)
• Degraded and purified the degraded chitosan

Chemical Lab Analyst at Directorate of Standardization and Quality Control – Goods Quality Testing Center (2021-01 – 2021-02)

• Performed biuret content analysis in urea fertilizer based on SNI 2801:2010 using UV-Vis Spectrophotometer
• Conducted titration, destruction, and deacetylation processes for laboratory sample preparation

Bachelor of Science in Chemistry – Universitas Islam Negeri Syarif Hidayatullah Jakarta (2018-09 – 2022-10)