Andy H. - Senior Formulation Technician (Contract)

San Francisco, United States

Experience

Nov 2024 - Present

1 year 1 month

Sunnyvale, United States

Synthesize polymers for ProSwift RP-1S PSDVB Reversed Phase (U)HPLC and DNASwift SAX-1S columns
Conduct routine packing of analytical and guard columns for ion exchange chromatography according to work instructions
Perform qualification tests evaluating selectivity, asymmetry, retention time, and efficiency to determine pass/fail status for analytical and guard columns
Troubleshoot and maintain HPLC systems, including priming pumps, refilling eluents, and replacing lines to prevent clogging
Qualify resin for packed analytical and guard columns to determine performance

Jan 2023 - Apr 2023

4 months

Los Alamitos, United States

Synthesize semiconducting materials through high-temperature crystal growth using the Bridgman technique
Carry out wafer slicing and CMP processes to achieve targeted wafer thinning

Aug 2020 - Jun 2024

3 years 11 months

Long Beach, United States

Perform high-temperature solid-state and sol-gel synthesis of the parent compound CaYGaO4 and systematically dope lanthanides and other defects
Maintain records of findings for presentation and poster conferences
Generate graphs in Excel using data collected from UV-Vis spectroscopy, powder X-ray diffraction, and spectrofluorometer
Create standard operating procedures for instruments that are outdated or rarely used
Train undergraduates on experimental procedures and instrument operation

Oct 2019 - Apr 2020

7 months

Foster City, United States

Weigh out powder and solid materials to prepare solutions of standardized concentrations
Use ChemDraw to generate accurate names of structures for documentation and database searches
Check compounds synthesized by medicinal chemistry

Mar 2018 - Jul 2019

1 year 5 months

Richmond, United States

Collect oil and lubricant samples from refiners and vendors and submit samples for analysis
Maintain chemical inventory and safety inspection records
Improve test precision through design of experiments (DOE) parameter adjustments and by enhancing procedure execution for the Soot Rheometer Project
Bench-test MiniQV-X viscometer to predict dispersant system performance and its correlation with engine tests
Conduct tests and analyses of lubricants and oil for oxidation stability, rheology, and friction and wear

Jul 2016 - Aug 2017

1 year 2 months

Davis, United States

Perform liquid-liquid extraction and solid-phase extraction to isolate target compounds from samples
Extract WCB and EP samples using different processes for the quantification of active compounds via HPLC
Develop a sample preparation method for HPLC analysis
Purify bioactive secondary metabolites using C-18 and silica gel column chromatography
Conduct a heat kill study to compare compound stability between supernatant and pellet over different incubation times
Analyze time course samples to understand secondary metabolite production