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Key Documents

63043

Supelco

Magnesium matrix modifier

for graphite furnace-AAS

Synonyme(s) :

Magnesium nitrate – nitric acid solution, Magnesium modifier

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About This Item

Numéro CAS:
13446-18-9
Numéro Beilstein :
4948473
Numéro MDL:
MFCD00085308
Code UNSPSC :
12000000
eCl@ss :
32129211
ID de substance PubChem :
329759765
Nomenclature NACRES :
NA.21

Qualité

for graphite furnace-AAS

Niveau de qualité

100

Poids mol.

Mr 256.41 g/mol

Concentration

10.0 g/L±0.3 g/L Mg (in ~17% nitric acid)

Traces de cations

Ag: ≤0.001 mg/kg
As: ≤0.01 mg/kg
Cd: ≤0.001 mg/kg
Pb: ≤0.01 mg/kg
Se: ≤0.1 mg/kg
Tl: ≤0.01 mg/kg

InChI

1S/Mg

Clé InChI

FYYHWMGAXLPEAU-UHFFFAOYSA-N

Description générale

Matrix modification is a procedure for reducing volatilization and vapour-phase intrusions using a chemical reagent which acts as buffer enabling the use of higher pre-treated and atomization temperatures. The reagent causes either the interfering component to become more volatile or the analyte is converted to less volatile form. Magnesium is a first class modifier, forming oxides in the graphite furnace during heat pre-treatment. Magnesium added as nitrate has high thermal stability.

Application

Magnesium along with palladium may be used as matrix modifier during platform atomization, to determine lead in solution and in soil slurries, using electrothermal atomization atomic absorption spectrometry. It may also be used for determining brain manganese concentrations during graphite furnace atomic absorption spectrometry (GFAAS).

Pictogrammes

Flame over circleCorrosionExclamation mark
GHS03,GHS05,GHS07

Mention d'avertissement

Danger

Mentions de danger

H272,H290,H314,H332

Classification des risques

Acute Tox. 4 Inhalation - Eye Dam. 1 - Met. Corr. 1 - Ox. Liq. 3 - Skin Corr. 1B

Risques supp

EUH071

Code de la classe de stockage

5.1B - Oxidizing hazardous materials

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificats d'analyse (COA)

Lot/Batch Number
BCCH9356
BCCF3860
BCCB8361
BCBW1971
BCBS0087V

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Consulter la Bibliothèque de documents

Effectiveness of palladium plus magnesium as a matrix modifier for the determination of lead in solutions and soil slurries by electrothermal atomisation atomic absorption spectrometry.
Hinds, Michael W., Mohan Katyal, and Kenneth W. Jackson.
Journal of Analytical Atomic Spectrometry, 3, 83-87 (1988)
Lauri H. J. Lajunen, P. Peramaki
Spectrochemical Analysis by Atomic Absorption and Emission, 142-144 (2004)
Magnesium nitrate as a matrix modifier in the stabilized temperature platform furnace
W. Slavin, G. R. Carnrick, and D. C. Manning
Analytical Chemistry, 54, 621-624 (1982)
Dinamene Santos et al.
Biological trace element research, 150(1-3), 337-341 (2012-09-14)
Manganese (Mn) is an essential element and it acts as a cofactor for a number of enzymatic reactions, including those involved in amino acid, lipid, protein, and carbohydrate metabolism. Excessive exposure to Mn can lead to poisoning, characterized by psychiatric
Zhichao Liu et al.
PLoS computational biology, 7(12), e1002310-e1002310 (2011-12-24)
Drug-induced liver injury (DILI) is a significant concern in drug development due to the poor concordance between preclinical and clinical findings of liver toxicity. We hypothesized that the DILI types (hepatotoxic side effects) seen in the clinic can be translated

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