ammonia
analysis
analyzing
background
bench
blur background
bonding
boric acid
chemical
chemist
chemistry
clear solution
color
complex
compound
concentration
conical
container
determination
development
doctor
equipment
erlenmeyer
experiment
flask
forming
glass
glassware
lab
laboratory
liquid
liquor
medical
medicine
pharmaceutical
research
science
scientific
scientist
selective focus
solution
solvent
table
technical
technique
technology
volume
water
white
yellow
定額
The scientist wear blue nitrile gloves holding Erlenmeyer Conical flask, with purple violet solvent forming reaction boric acid and ammonia solution analysis in wastewater sample. Selective focus.の素材 [FY310159648319]
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