Petro Rabigh: PMMA-Residual Monomer QC Work Instruction
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Questions and Answers

What is the purpose of this work instruction?

  • To conduct safety training for PMMA handling
  • To determine residual monomer concentration in PMMA (correct)
  • To synthesize PMMA pellets
  • To analyze the properties of PMMA

What is the abbreviation for Methyl Methacrylate (MMA)?

  • Methanol
  • MSDS
  • MA (correct)
  • MIK

What apparatus is used to determine the concentration of MMA monomer and methyl acrylate?

  • pH Meter
  • Gas Chromatograph (correct)
  • Spectrophotometer
  • Centrifuge

What is the procedure for equipment calibration mentioned in the work instruction?

<p>Preparing standard solutions A, B, C, and D in 2 mL vials (D)</p> Signup and view all the answers

What is the safety precaution for handling Methyl iso-butyl ketone (MIK)?

<p>Keep away from sources of ignition (D)</p> Signup and view all the answers

What is the main focus of the work instruction PMMA-Residual Monomer?

<p>Quality control in the production of PMMA (B)</p> Signup and view all the answers

What is the length of the GC operation condition column?

<p>30 m (B)</p> Signup and view all the answers

What is the temperature hold time for the GC operation condition column?

<p>10 min (C)</p> Signup and view all the answers

What is the injection volume for the injector used?

<p>2μl (B)</p> Signup and view all the answers

What is the purpose of using methyl isobutyl ketone in the analysis process?

<p>To act as an internal standard substance (A)</p> Signup and view all the answers

What is the purpose of adding 30 mL of methanol in step 5.5 of the process?

<p>To precipitate the polymer for analysis (D)</p> Signup and view all the answers

What is the role of acetone in step 5.2 of the process?

<p>To dissolve the PMMA pellets sample (D)</p> Signup and view all the answers

What is the abbreviation for Methyl Acrylate?

<p>MA (C)</p> Signup and view all the answers

The concentration of MMA monomer and methyl acrylate are determined with gas chromatography according to the internal standard method.

<p>True (A)</p> Signup and view all the answers

Methyl iso-butyl ketone should be kept away from sources of ignition.

<p>True (A)</p> Signup and view all the answers

Acetone is used in step 5.2 of the process for sample preparation.

<p>True (A)</p> Signup and view all the answers

The purpose of adding 30 mL of methanol in step 5.5 of the process is to precipitate the polymer.

<p>True (A)</p> Signup and view all the answers

What is the purpose of adding acetone in step 5.2 of the process?

<p>To dissolve the polymer completely (A)</p> Signup and view all the answers

What is the purpose of adding MIK (internal standard) in step 5.4 of the process?

<p>To dissolve the polymer completely (A)</p> Signup and view all the answers

What is the main focus of the work instruction PMMA-Residual Monomer?

<p>Determining the residual monomer in PMMA (A)</p> Signup and view all the answers

What is the role of methanol in step 5.5 of the process?

<p>To precipitate the polymer (A)</p> Signup and view all the answers

What is the injection volume for the injector used in this process?

<p>Not mentioned in the text (D)</p> Signup and view all the answers

What is the temperature hold time for the GC operation condition column?

<p>Not mentioned in the text (A)</p> Signup and view all the answers

In step 5.3, the sample bottle is stirred for 8 hours before adding the internal standard?

<p>False (B)</p> Signup and view all the answers

The GC vial is kept in the GC sample holder in step 5.7?

<p>True (A)</p> Signup and view all the answers

The result from chromatogram is noted at the beginning of the analysis in step 5.8?

<p>False (B)</p> Signup and view all the answers

The result for residual monomer is recorded in LIMS rounded to two decimal places in step 5.9?

<p>True (A)</p> Signup and view all the answers

The waste sample is disposed to the appropriate waste container in step 5.10?

<p>True (A)</p> Signup and view all the answers

What is the purpose of adding acetone in step 5.2 of the process?

<p>To prepare the sample for GC analysis (A)</p> Signup and view all the answers

What is the role of methanol in step 5.5 of the process?

<p>To facilitate polymer precipitation (C)</p> Signup and view all the answers

What is the abbreviation for Methyl Methacrylate (MMA)?

<p>MMA (C)</p> Signup and view all the answers

What is the temperature hold time for the GC operation condition column?

<p>This information is not provided (B)</p> Signup and view all the answers

What is the main focus of the work instruction PMMA-Residual Monomer?

<p>Determining residual monomer concentration in PMMA (A)</p> Signup and view all the answers

What is the purpose of adding 30 mL of methanol in step 5.5 of the process?

<p>To precipitate the polymer (D)</p> Signup and view all the answers

What is the role of acetone in step 5.2 of the process?

<p>To dissolve the sample (D)</p> Signup and view all the answers

What is the abbreviation for Methyl iso-butyl ketone (MIK)?

<p>MIBK (B)</p> Signup and view all the answers

What apparatus is used to determine the concentration of MMA monomer and methyl acrylate?

<p>Gas chromatography (D)</p> Signup and view all the answers

What is the purpose of adding 30 mL of methanol in step 5.5 of the process?

<p>To precipitate the polymer (C)</p> Signup and view all the answers

What is the role of acetone in step 5.2 of the process?

<p>To dissolve the polymer (A)</p> Signup and view all the answers

What apparatus is used to determine the concentration of MMA monomer and methyl acrylate?

<p>Gas chromatography (GC) (C)</p> Signup and view all the answers

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