Determining Trimethylamine and Standard Cation Contents in 30% Hydrogen Peroxide

Hydrogen peroxide (H2O2) is supplied in a variety of purity grades based on its applications. Very low contamination levels should be present in high purity H2O2 (electronic grade), for instance, below 1 μg/L of trimethylamine (TMA).

This article discusses the determination of trimethylamine content in a high-purity H2O2 solution (30%). Inline preconcentration with matrix elimination (MiPCT-ME) is used to perform the analysis by applying conductivity detection following the sequential cation suppression.

Download the Article

Sample

Hydrogen peroxide (30%)

Sample preparation

Metrohm intelligent preconcentration technique with inline matrix elimination (MiPCT-ME).

Columns

Metrosep C Supp 1 - 250/4.0

6.1052.430

Metrosep C Supp 1 Guard/4.0

6.1052.500

Metrosep C PCC 1 HC/4.0

6.1010.310

2 x Metrosep I Trap 1 - 100/4.0

6.1014.200

Solutions

Eluent

5.0 mmol/L nitric acid

50 μg/L rubidium

Suppressor regenerant

70 mmol/L sodium carbonate

70 mmol/L sodium hydrogen carbonate

Rinsing solution

STREAM

Matrix elimination

Ultrpure water (ELGA)

Analysis

Conductivity detection after the sequential suppression

Parameters

Flow rate

1.0 mL/minutes

Injection volume

1000 μL

Pmax

15 Mpa

Recording time

18 minutes

Column temperature

40 °C

Instrumentation

930 Compact IC Flex Oven/SeS/PP/Deg

2.930.2560

IC Conductivity Detector

2.850.9010

858 Professional Sample Processor

2.858.0010

2 x 800 Dosino

2.800.0010

MSM-HC Rotor C

6.2842.200

IC equipment: MiPCT-ME

6.5330.160

 

Results

Cation

Conc. [μg/L]

RSD [%]

Recovery [%]

1

Lithium

n.d.

-

79

2

Sodium

0.39

2.6

89

3

Ammonium

1.83

4.1

87

4

Potassium

0.20

12

 

5

TMA

0.71

3.3

74

6

Magnesium

0.55

5.5

84

7

Calcium

0.97

4.1

142

 

This information has been sourced, reviewed and adapted from materials provided by Metrohm AG.

For more information on this source, please visit Metrohm AG.

Citations

Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    Metrohm USA Inc.. (2020, May 15). Determining Trimethylamine and Standard Cation Contents in 30% Hydrogen Peroxide. AZoM. Retrieved on May 17, 2024 from https://www.azom.com/article.aspx?ArticleID=15436.

  • MLA

    Metrohm USA Inc.. "Determining Trimethylamine and Standard Cation Contents in 30% Hydrogen Peroxide". AZoM. 17 May 2024. <https://www.azom.com/article.aspx?ArticleID=15436>.

  • Chicago

    Metrohm USA Inc.. "Determining Trimethylamine and Standard Cation Contents in 30% Hydrogen Peroxide". AZoM. https://www.azom.com/article.aspx?ArticleID=15436. (accessed May 17, 2024).

  • Harvard

    Metrohm USA Inc.. 2020. Determining Trimethylamine and Standard Cation Contents in 30% Hydrogen Peroxide. AZoM, viewed 17 May 2024, https://www.azom.com/article.aspx?ArticleID=15436.

Ask A Question

Do you have a question you'd like to ask regarding this article?

Leave your feedback
Your comment type
Submit

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.