David Christensen

David Christensen Email and Phone Number

Laboratory Manager @ Apollo Labs
Scottsdale, AZ, US
David Christensen's Location
Scottsdale, Arizona, United States, United States
About David Christensen

I have four years of experience working in quality control laboratories on a wide variety of analytical instrumentation. I have worked in the hazmat, semiconductor, pharmanatural/nutraceutical, and cannabis industries. I specialize in trace metal analysis by ICP-MS. I have worked with Agilent 7500, 7700, 7900, 8800, and 8900 ICP-MS instruments, as well as the PerkinElmer NexION 1000. I am also adept at the microwave digestion process, and have used both Milestone SRC and Mars rotor microwave systems.

David Christensen's Current Company Details
Apollo Labs

Apollo Labs

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Laboratory Manager
Scottsdale, AZ, US
David Christensen Work Experience Details
  • Apollo Labs
    Laboratory Manager
    Apollo Labs
    Scottsdale, Az, Us
  • Apollo Labs
    Chemist
    Apollo Labs 2021 - Present
    Scottsdale, Arizona, United States
    -Primarily tests cannabis samples for arsenic, cadmium, lead, and mercury on an Agilent 7700 ICP-MS.-Utilizes microwave digestion for sample prep (familiar with Milestone SRC and Mars rotor microwaves).-Prepares samples, calibrates instrumentation, and enters/reviews test results.-Performs troubleshooting/maintenance, including changing peristaltic pump tubing, unclogging nebulizers, cleaning cones, changing gas cylinders/dewars, preparing standards, doing dilutions, etc.-Interviews candidates and trains other chemists in trace metals analysis.-Is responsible for all chemical receiving, including managing SDS's and COA's.-Monitors metals results, communicating with clients to pinpoint sources of contamination.-Tests soil, coco, catridges, water sources, pesticides, and more to troubleshoot elevated results.-Developed a low-chloride microwave digestion method to promote cone and detector health.-Is trained to test samples for 14 different cannabinoids by HPLC.
  • Fine Living Pharmanaturals
    Chemist
    Fine Living Pharmanaturals Oct 2020 - Jul 2021
    Tempe, Arizona, United States
    -Standardized and wrote procedures for organoleptic testing, loss on drying (LOD), and FTIR.-Self-taught operation and maintenance of HPTLC for identification of botanicals and botanical extracts.-Used water activity to assess risk of microbial growth and predict sample stability.-Streamlined sample testing by implementing 5S principles in the lab and helping go paperless.-Performed daily calibration and testing on ICP-MS for the analysis of solid samples utilizing microwave acid digestion.-Tested samples at each stage of production for trace metal contamination as well as mineral content.-Abided by CGMP regulations as enforced by the FDA.
  • Mgc Pure Chemicals America, Inc.
    Laboratory Technician
    Mgc Pure Chemicals America, Inc. Mar 2019 - Mar 2020
    Mesa, Arizona, United States
    -Tested hydrogen peroxide, ammonium hydroxide, and a hybrid chemical for assay and purity. -Utilized many instruments including HPLC, GFAAS, ICP-MS (at the ppt level), autotitrators, UV-Vis, and TOC. -Calibrated and ran samples on all instruments regularly. -Implemented the 5S system for lean manufacturing in the lab as part of a companywide initiative. -Obtained technical writing experience, authoring two instrument manuals and six SOP’s. -Performed instrument qualification, matching studies, and non-conformance reports. -Worked with a laboratory information management system (LIMS). -Shared information between teams daily to facilitate problem solving and prevent communication gaps.
  • Clean Harbors
    Cleanpack Chemist
    Clean Harbors Aug 2018 - Dec 2018
    Phoenix, Arizona
    -Identified, sorted, and packed hazardous waste for clients including hospitals, labs, and universities.-Ensured HAZMAT compliance with EPA, DOT, state, local, and site-specific regulations. -Assisted with citywide household hazardous waste collections. -Prepared a job hazard analysis before each lab pack to ensure health and safety. -Received 40-hour HAZWOPER certification.
  • Self-Employed
    Tutor
    Self-Employed Aug 2015 - May 2018
    Scottsdale, Az
    I have tutored one high school student in Physics I and two undergraduate students in General Chemistry.
  • Wheaton College
    Teaching Assistant
    Wheaton College Aug 2014 - May 2018
    Greater Chicago Area
    -10 hours/week-Competitive position based on grades and faculty recommendations.-Assisted students in lab by answering questions, troubleshooting instruments, disposing of waste, and enforcing safety protocol.-Grades student quizzes and lab reports weekly.-Courses: General Chemistry (one semester), Inorganic Chemistry (one semester), Organic Chemistry (two semesters), and Physical Chemistry (two semesters).
  • Wheaton College
    Water Treatment Internship
    Wheaton College Jan 2017 - Dec 2017
    Greater Chicago Area
    -40 hours/week-Tested water regularly for conductivity, pH, hardness, alkalinity, chlorine, bromine, phosphate, organophosphonate, iron, and sulfite.-Created digital log sheets in Google Drive, giving the shop remote access to water quality data.-Treated water with corrosion inhibitor via reciprocating pumps as well as filter feeders.-Brought an abandoned system of sock and cartridge filters online, clarifying once-muddy water.-Collaborated with various contractors and helped supervisors evaluate different treatment options.

David Christensen Education Details

Frequently Asked Questions about David Christensen

What company does David Christensen work for?

David Christensen works for Apollo Labs

What is David Christensen's role at the current company?

David Christensen's current role is Laboratory Manager.

What schools did David Christensen attend?

David Christensen attended Wheaton College.

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