Related Experiment Video
Updated: Jul 9, 2025
10:20
Quantification of Heavy Metals and Other Inorganic Contaminants on the Productivity of Microalgae
Published on: July 10, 2015
16.0K
The microalgae's ability to accumulate selected trace elements studied by ICP-MS/MS and chemometric methods
Sylwia Zdziebłowska1, Mateusz Czarnecki1, Patrycja Ciosek-Skibińska2
1Chair of Analytical Chemistry, Faculty of Chemistry, Warsaw University of Technology, Poland.
Summary
Microalgae can accumulate metals, and their content can be controlled by adjusting cultivation conditions and medium composition. This research quantifies metal accumulation in different microalgae species for quality control.
Area of Science:
- Biotechnology
- Environmental Science
- Analytical Chemistry
Background:
- Microalgae find applications in cosmetology, pharmaceuticals, and food industries.
- Understanding elemental accumulation in microalgae is crucial for industrial applications.
- Enriched media can enhance microalgal biomass's ion accumulation capacity.
Purpose of the Study:
- To determine total metal content in microalgae using ICP-MS/MS.
- To analyze metal content variations based on microalgae species and cultivation conditions.
- To assess the importance of metal content knowledge for microalgal quality control.
Main Methods:
- Inductively coupled plasma tandem mass spectrometry (ICP-MS/MS) for metal quantification.
- Cultivation of microalgae in element-enriched media.
- Statistical analysis of metal accumulation data.
Main Results:
- Three microalgae groups with similar total metal content were identified.
- Significant enhancement of specific element accumulation was achieved (e.g., Selenium from 0.279 to 219.7 µg g⁻¹).
- Cultivation conditions and microalgae species significantly impact metal accumulation, with correlations between ion accumulation observed.
Conclusions:
- Cultivation conditions and microalgae species are key factors influencing elemental content.
- While a single species isn't universally superior, medium composition allows for controlled metal accumulation.
- This control is vital for ensuring microalgal product quality and safety.
Related Concept Videos
01:20Inductively Coupled Plasma-Mass Spectrometry (ICP-MS): Interferences
485
Inductively coupled plasma–mass spectrometry (ICP–MS) is a highly selective and sensitive technique for accurate elemental analysis. Though the analysis of ICP–MS mass spectra is comparatively straightforward, it is affected by spectroscopic and non-spectroscopic interferences. Spectroscopic interferences arise when the plasma contains ionic species with an m/z value the same as the analyte ion. Spectroscopic interference can be categorized as isobaric, polyatomic ions, and...
485
01:19Inductively Coupled Plasma–Mass Spectrometry (ICP–MS): Overview
751
In inductively coupled plasma–mass spectrometry (ICP–MS), an inductively coupled plasma (ICP) torch is used as an atomizer and ionizer. Solid samples are dissolved and volatilized before being introduced into the high-temperature argon plasma, while solution samples are nebulized and passed through the high-temperature argon plasma. Plasma dissociates the analytes and ionizes their component atoms to form a mixture of positive ions and molecular species. The positive ions are then...
751