Mathematics, 12.02.2020 17:44, yuvallevy14
A researcher was attempting to quantify the amount of (DDT) in spinach using gas chromatography mass spectrometry (GCMS). First attempts using external calibration proved difficult, as reproducibility and external standard agreement were poor. To overcome these problems, the researcher used the internal standard calibration method with chloroform as the internal standard. To begin, the researcher analyzed a sample containing 6.58 mg/L DDT standard and 2.82 mg/L chloroform as the internal standard, which produced peak areas of 3713 and 10899 for the DDT and chloroform, respectively. Determine the response factor ( F ).
Answers: 3
Mathematics, 21.06.2019 21:00, morganpl415
Eliza wants to make $10,000 from her investments. she finds an investment account that earns 4.5% interest. she decides to deposit $2,500 into an account. how much money will be in her account after 14 years?
Answers: 1
Mathematics, 21.06.2019 21:30, cdvazquez727
The box plots show the average speeds, in miles per hour, for the race cars in two different races. which correctly describes the consistency of the speeds of the cars in the two races?
Answers: 3
A researcher was attempting to quantify the amount of (DDT) in spinach using gas chromatography mas...
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