Pasar al contenido principal
Inicio

Dedicated to discovery

  • Acerca de ELGA
    • Acerca de ELGA
    • Empleo
    • Eventos
  • Soporte
    • Planificación de laboratorio
  • Contacto
  • EN
  • DE
  • FR
  • IT
  • PT
  • EN-US
Inicio
  • Productos
    • PURELAB
      • PURELAB® Dispenser
      • PURELAB® Flex
      • PURELAB® Quest
      • PURELAB® Pharma Compliance
      • PURELAB® Chorus 1 Complete
      • PURELAB® Chorus 1
      • PURELAB® Chorus 2
      • PURELAB® Chorus 3
      • Purelab Chorus 2+ (RO/DI/UV) / (RO/EDI/UV)
    • CENTRA
      • CENTRA® R60/120
      • CENTRA® R200
      • CENTRA® RDS
    • MEDICA
      • MEDICA® 150
      • MEDICA® 7/15
      • MEDICA® BIOX 2024
      • MEDICA® Pro-R & Pro-RE
      • MEDICA® R200
      • MEDICA® EDI 15/30
      • MEDICA® Pro-LPS
      • MEDICA® Pro EDI 60/120
      • MEDICA® BIOX
      • Hubgrade
    • BIOPURE
      • BIOPURE® 300/600
    • PURENERGY® 30
    • Gama completa de productos ELGA
  • Aplicaciones
    • Análisis microbiológico
    • Bioquímica clínica
    • Cromatografía de gases
    • Cromatografía líquida
      • High Performance Liquid Chromatography
    • Cultivos celulares
    • Electroquímica
    • Espectrofotometría
    • Espectrometría de masas
    • Espectroscopia atómica
    • Genética
    • High Performance Liquid Chromatography (HPLC)
    • Inmunoquímica
    • Requisitos generales de agua de laboratorio
  • Tecnologías
    • Carbón activado
    • Electrodesionización (EDI)
    • Filtración
    • Intercambio iónico
    • PureSure
    • Ultravioleta
    • Ósmosis inversa
  • Impurezas en el agua
    • Compuestos inorgánicos
    • Compuestos orgánicos
    • Gases disueltos
    • Microorganismos y bacterias
    • Partículas
  • Conocimiento
    • BROSCHÜREN
    • Blog
    • Casos prácticos
    • Agua ultrapura
    • Manuales e informes técnicos
  • Where to buy
  • Contacto
Home
  • Contacto
  • Productos
    • PURELAB
      • PURELAB® Dispenser
      • PURELAB® Flex
      • PURELAB® Quest
      • PURELAB® Pharma Compliance
      • PURELAB® Chorus 1 Complete
      • PURELAB® Chorus 1
      • PURELAB® Chorus 2
      • PURELAB® Chorus 3
      • Purelab Chorus 2+ (RO/DI/UV) / (RO/EDI/UV)
    • CENTRA
      • CENTRA® R60/120
      • CENTRA® R200
      • CENTRA® RDS
    • MEDICA
      • MEDICA® 150
      • MEDICA® 7/15
      • MEDICA® BIOX 2024
      • MEDICA® Pro-R & Pro-RE
      • MEDICA® R200
      • MEDICA® EDI 15/30
      • MEDICA® Pro-LPS
      • MEDICA® Pro EDI 60/120
      • MEDICA® BIOX
      • Hubgrade
    • BIOPURE
      • BIOPURE® 300/600
    • PURENERGY® 30
    • Gama completa de productos ELGA
  • Aplicaciones
    • Análisis microbiológico
    • Bioquímica clínica
    • Cromatografía de gases
    • Cromatografía líquida
      • High Performance Liquid Chromatography
    • Cultivos celulares
    • Electroquímica
    • Espectrofotometría
    • Espectrometría de masas
    • Espectroscopia atómica
    • Genética
    • High Performance Liquid Chromatography (HPLC)
    • Inmunoquímica
    • Requisitos generales de agua de laboratorio
  • Tecnologías
    • Carbón activado
    • Electrodesionización (EDI)
    • Filtración
    • Intercambio iónico
    • PureSure
    • Ultravioleta
    • Ósmosis inversa
  • Impurezas en el agua
    • Compuestos inorgánicos
    • Compuestos orgánicos
    • Gases disueltos
    • Microorganismos y bacterias
    • Partículas
  • Conocimiento
    • BROSCHÜREN
    • Blog
    • Casos prácticos
    • Agua ultrapura
    • Manuales e informes técnicos
  • Where to buy
  • Contacto
  • Acerca de ELGA
    • Acerca de ELGA
    • Empleo
    • Eventos
  • Soporte
    • Planificación de laboratorio
  • Contacto
  • EN
  • DE
  • FR
  • IT
  • PT
  • EN-US
  • Política de privacidad
  • Términos y condiciones
  • Cumplimiento legal internacional
  • Patentes
  • Trademarks
  • Aviso legal
  • Learning the Secrets of a Unique Ecosystem in the Heart of Siberia
Environment & Sustainability

Learning the Secrets of a Unique Ecosystem in the Heart of Siberia

16 Nov 2023
- by Dr Paul Whitehead

Learning the secrets of a unique ecosystem in the heart of Siberia

Lake Baikal in southern Siberia is the deepest lake in the world – up to 1.6 km deep in places – and has a unique ecosystem. It is also a wonderfully undeveloped area as illustrated in the photograph from when I was there in 2004. Endemic species of sponges are known to inhabit the lake from ancient times. These sponges act as biological filters for the lake water and contribute greatly to silicon circulation in the lake. In recent years a research institute at Irkutsk, the only significant town in the area, has been studying the sponges’ composition and have published a series of articles (1,2,3). Below we delve a little deeper into these studies.


Studying Lake Baikal Sponges using Wavelength Dispersive X-ray Fluorescence Spectrometry

Oxidative stress of Lake Baikal organisms can be caused by pollution with anionic surfactants or heavy metals, although some specific heavy metals are essential for aquatic organisms. The first article (1) describes the use of wavelength dispersive X-ray fluorescence spectrometry to study the sponges at the southern end of the lake. The concentrations in the sponges of 19 elements, Na, Mg, Al, Si, P, S, Cl, K, Ca, Ti, Mn, Fe, Ni, Cu, Zn, Br, Rb, Sr, and Ba, were determined using synthetic calibration standards, prepared by mixing plant certified reference materials and silicon dioxide.
 

Testing Lake Baikal Sponges Lubomirskia Baicalensis as bio-monitor of chemical pollution

Baikal sponges Lubomirskia baicalensis have also been tested as potential bio-monitors of chemical pollution (2). The elemental composition of sponges, water and substrate samples were collected in two areas of Lake Baikal where the impact of human activities was very different. Lubomirskia baicalensis accumulates predominantly Cu and Cd and, to a lesser extent, Br, Ba, and Zn. The content of Cl, Ca, V, Zn, As, Se, Ba, Cd, and Cu in the sponges collected in the more polluted waters of Listvennichny Bay was significantly higher than in Bolshye Koty Bay. Sponges accumulate mainly Cd, Cu and Br from the substrate, and most of the elements from the water. They demonstrated that the sponges were suitable bioindicators to assess the pollution of Lake Baikal.

 

Applicability of total reflection x-ray fluorescence (TXRF) to determine heavy metals in Lake Baikal Sponges

Pashkova et al. (3) investigated the applicability of total reflection x-ray fluorescence (TXRF) to determine heavy metals in the sponges. It was shown that TXRF method can be successfully applied to the fast and reliable quantification of Cu, Zn, Fe, and Mn. Acid digestion by HNO 3 /H 2 O 2 mixture proved to be the optimal procedure for the preparation of sponges. It improved sensitivity and eliminate the effects of particle size and specimen heterogeneity compared with suspension preparation. The TXRF results were agreed well when compared with the data obtained by wavelength dispersive x-ray fluorescence spectrometry.

In all the investigations ultrapure water from an ELGA LabWater PURELAB unit was used in sample preparation, to produce standards and to clean equipment. Total reflection x-ray fluorescence is a particularly, sensitive technique measuring low elemental levels in small samples and requires high purity reagents to ensure accuracy.

 


Reference:

  1. E.V. Chuparina, L. Ph. Paradina, V.A. Trunova Determination of elemental composition of Lake Baikal sponges by wavelength dispersive X-ray fluorescence spectrometry, 17 April 2013 https://doi.org/10.1002/xrs.2460
     
  2. Alena Yakhnenko, Inga Zinicovscaia, Nikita Yushin, Omari Chaligava, Ivan Nebesnykh, Dmitrii Grozdov, Igor Khanaev, Octavian G. Duliu, Olga Maikova, Elena Kravchenko Endemic sponge Lubomirskia baikalensis as a bioindicator of chemical elements pollution in Lake Baikal, Marine Pollution Bulletin Volume 182, September 2022, 114025
     
  3. Galina V. Pashkova, Alyona A. Nikonova, Svetlana D. Dylgerova, Elena V. Chuparina, Artem S. Maltsev, Alena N. Zhilicheva, Olga Yu. Belozerova, Ludmila P. Paradina, Olga Yu. Glyzina, Igor V. Khanaev, Applicability of total reflection x-ray fluorescence for heavy metal analysis in Lake Baikal sponges, 24 August 2023, https://doi.org/10.1002/xrs.3396

Dr Paul Whitehead 

After a BA in Chemistry at Oxford University, Paul focused his career on industrial applications of chemistry. He was awarded a PhD at Imperial College, London for developing a microwave-induced-plasma detector for gas chromatography. He spent the first half of his career managing the analytical support team at the Johnson Matthey Research/Technology Centre,specialising in the determination of precious metals and characterising applications such as car-exhaust catalysts and fuel cells. Subsequently, as Laboratory Manager in R&D for ELGA LabWater, he has been involved in introducing and developing the latest water purification technologies. He now acts as a consultant for ELGA.

 

How can we help?

Analyses of unusual ecosystems and those in a state of flux bring extra demands to all aspects of the analysis, requiring increased confidence in the data obtained. The consistent quality of the purified water used is a key feature of such confidence. ELGA has a well- established track record in providing that confidence.

Contact Us

  • Sales Enquiry
  • Consigue una cotización
  • Technical Support
  • Encuentre un socio aprobado

Sales Enquiry

At ELGA LabWater, we have exciting offers and news about our products and services that we hope you’d like to hear about. We will use your information to predict what you might be interested in. We will treat your data with respect and you can find the details in our Privacy Policy.

ELGA LabWater works with a network of Approved Partners. In order to answer your questions or enquiries, we may pass your contact details to an Approved Partner, who may contact you directly. 

I'd like to receive updates from ELGA LabWater & ELGA Approved Partners based on my details.

Consigue una cotización

At ELGA LabWater, we have exciting offers and news about our products and services that we hope you’d like to hear about. We will use your information to predict what you might be interested in. We will treat your data with respect and you can find the details in our Privacy Policy.

ELGA LabWater works with a network of Approved Partners. In order to answer your questions or enquiries, we may pass your contact details to an Approved Partner, who may contact you directly. 

I'd like to receive updates from ELGA LabWater & ELGA Approved Partners based on my details.

Technical Support

At ELGA LabWater, we have exciting offers and news about our products and services that we hope you’d like to hear about. We will use your information to predict what you might be interested in. We will treat your data with respect and you can find the details in our Privacy Policy.

ELGA LabWater works with a network of Approved Partners. In order to answer your questions or enquiries, we may pass your contact details to an Approved Partner, who may contact you directly. 

Call us

Can't find what you are looking for?

Support Number
+44 (0)20 3567 7300
United Kingdom Sales
+44 (0)1628 879 704
United States of America Sales
+1 877-315-3542
France Sales
+33 1 40 83 65 00
China Sales
+86 400-616-8882

 

Sede central de ELGA LabWater

Lane End Business Park
Lane End, High Wycombe
HP14 3BY
Reino Unido
Tel.: +44 (0) 203 567 7300
F: +44 (0) 203 567 7205

Casos prácticos

  • Abbott Diagnostics
  • Diagnóstico médico de DASA
  • Instituto Médico NeoDIN
  • Fundación del NHS de North Staffordshire
  • Escuela técnica de Olsberg

Recursos

  • Obtenga más información sobre el agua ultrapura
  • Manuales e informes técnicos
  • Tecnologías de purificación
  • Aplicaciones
  • Impurezas en el agua
  • Latest Blog
  • Water Purity - Different Types of Pure Water
  • What is Clinical Laboratory Reagent Water (CLSI)?
  • What is Total Organic Carbon (TOC)?

© VWS (UK) Ltd. comercializado como ELGA LabWater.2025-Todos los derechos reservados.
ELGA es la marca mundial de agua de laboratorio de Veolia.

  • Política de privacidad
  • Términos y condiciones
  • Cumplimiento legal internacional
  • Patentes
  • Trademarks
  • Aviso legal
  • Idioma
    • Deutsch
    • English
    • Español
    • Français
    • Italiano
    • Português
    • 日本語
    • 中文
  • Otros sitios de Veolia
    • Veolia
    • Veolia Foundation
    • Veolia Water Technologies
Elga Veolia
TOP

© 2017 ELGA Veolia