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Instrument calibration is essential for ensuring that instruments produce accurate and consistent results. It is vital in manufacturing, healthcare, testing laboratories, and scientific research. Calibration processes are specific to each instrument and help enhance data accuracy. Each instrument has a unique calibration process tailored to its design and function to improve data accuracy.
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Author Spotlight: Technologies and Challenges in Elemental Analysis of Food Samples
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Automatic Preparation of Calibrating Solutions for Quantitative Analysis by ICP-MS.

Yanbei Zhu1

  • 1National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology.

Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry
|November 26, 2019
PubMed
Summary

An automated system precisely prepares calibrating solutions for elemental analysis using inductively coupled plasma mass spectrometry (ICP-MS). This method ensures high accuracy for elemental measurements, validated by excellent calibration curves and certified reference material analysis.

Keywords:
CalibrationICP-MSautomatic preparationflow sensorstandard

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Area of Science:

  • Analytical Chemistry
  • Instrumental Analysis

Background:

  • Accurate elemental measurements are crucial in various scientific fields.
  • Traditional preparation of calibrating solutions can be time-consuming and prone to errors.
  • Inductively coupled plasma mass spectrometry (ICP-MS) requires precise calibrating solutions for reliable quantification.

Purpose of the Study:

  • To develop an automated system for preparing calibrating solutions for elemental measurements.
  • To enhance the accuracy and efficiency of solution preparation for ICP-MS analysis.
  • To validate the performance of the automated system through rigorous testing.

Main Methods:

  • Development of an automatic system integrating solution dispensing and flow monitoring.
  • Utilization of a single ultrasonic flow sensor to control diluting solution, internal standard solution, and elemental solution.
  • Analysis of prepared calibrating solutions using ICP-MS.

Main Results:

  • The automatic system demonstrated precise control over solution flow rates.
  • Calibration curves generated from the automated system showed a correlation coefficient better than 0.999.
  • Analysis of a river-water certified reference material (NMIJ CRM 7202-b) yielded results that agreed with certified values for multiple elements.

Conclusions:

  • The developed automatic system is highly effective for preparing accurate calibrating solutions for ICP-MS.
  • The system offers a reliable and efficient alternative to manual preparation methods.
  • This automation contributes to improved accuracy and reproducibility in elemental analysis.