Homogeneity and stability study of the candidate reference material Adamussium colbecki for trace elements

2005 ◽  
Vol 7 (12) ◽  
pp. 1295 ◽  
Author(s):  
S. Ciardullo ◽  
A. Held ◽  
M. D’Amato ◽  
H. Emons ◽  
S. Caroli
Keyword(s):  
Trace Elements ◽  
Reference Material ◽  
Stability Study ◽  
Candidate Reference Material ◽  
Adamussium Colbecki

Long-term stability study on a Perna perna mussel candidate reference material

2010 ◽  
Vol 15 (4) ◽  
pp. 233-238
Author(s):  
Edson Gonçalves Moreira ◽  
M. B. A. Vasconcellos ◽  
M. G. M. Catharino ◽  
V. A. Maihara ◽  
M. Saiki
Keyword(s):  
Reference Material ◽  
Stability Study ◽  
Perna Perna ◽  
Candidate Reference Material ◽  
Term Stability ◽  
Long Term Stability ◽  
Perna Perna Mussel

Preparation of a reference material for crude oil trace elements: Study of homogeneity and stability

2020 ◽  
Vol 155 ◽  
pp. 104799
Author(s):  
Thábita Thiciana Bastos Marchezi ◽  
Luiza Valli Vieira ◽  
Rodrigo C. de Sena ◽  
Eustáquio Vinicius Ribeiro de Castro ◽  
Geisamanda Pedrini Brandão ◽  
...  
Keyword(s):  
Trace Elements ◽  
Reference Material ◽  
Crude Oil

scholarly journals Validation of Total Mercury in Marine Sediment and Biological Samples, Using Cold Vapour Atomic Absorption Spectrometry

2018 ◽  
Vol 1 (3) ◽  
pp. 31 ◽  
Author(s):  
Ahmed Elezz ◽  
Hassan Mustafa Hassan ◽  
Hamood Abdulla Alsaadi ◽  
Ahmed Easa ◽  
Saeed Al-Meer ◽  
...  
Keyword(s):  
Trace Elements ◽  
Reference Material ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Marine Sediment ◽  
Environmental Samples ◽  
Total Mercury ◽  
Absorption Spectrometry ◽  
Freeze Dried ◽  
Cold Vapour

A method for the measurement of total mercury (T-Hg) in environmental samples using cold vapour atomic absorption spectrometry (CV AAS) has been validated yielding a dynamic range (0.04–10.00 μg/kg) and high certified reference material (CRM) recovery (>90%). The validation was carried out according to International Union of Pure and Applied Chemistry (IUPAC) validation and Eurachem Guides. A freeze-dried and homogenised sample was weighed and then digested using Suprapur acids (HNO3, H2SO4, and HF) with potassium dichromate solution in a hot block digestion system. A calibration curve was constructed (R2 > 0.999). Two CRMs (Marine Sediment Reference Material (PACS-3) and Trace Elements in Muscle Tissue (Trace Elements and Methylmercury in Mussel Tissue (NIST2976)) were utilised for quality assurance and control. The limit of quantification (LOQ) calculated as 0.04 µg/kg, and uncertainty (U) calculated as 2%. The obtained results showed the suitability of this method for direct mercury measurement in environmental samples. Additionally, the proficiency of this method was recognised by accreditation under the standard of International Organization for Standardization (ISO/IEC 17025:2017) for competence of testing and calibration laboratories.

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