Merck
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63043

Supelco

Magnesium matrix modifier

for graphite furnace-AAS

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Synonym(s):
Magnesium nitrate – nitric acid solution, Magnesium modifier
CAS Number:
13446-18-9
Beilstein:
4948473
MDL number:
MFCD00085308
eCl@ss:
32129211
PubChem Substance ID:
329759765
NACRES:
NA.21

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Supelco

Supelco

1.05813

Magnesium matrix modifier

for graphite furnace AAS c(Mg) = 10.0 ± 0.2 g/l (Mg(NO₃)₂ * 6 H₂O in HNO₃ ca. 17%)

Palladium Matrix Modifier for graphite furnace-AAS

Supelco

76040

Palladium Matrix Modifier

for graphite furnace-AAS

Palladium matrix modifier for graphite furnace AAS c(Pd) = 10.0 ± 0.2 g/l (Pd(NO₃)₂ / HNO₃ ca. 15%)

Supelco

1.07289

Palladium matrix modifier

for graphite furnace AAS c(Pd) = 10.0 ± 0.2 g/l (Pd(NO₃)₂ / HNO₃ ca. 15%)

Phosphate modifier for graphite furnace AAS NH₄H₂PO₄ 100 ± 2 g/l in H₂O

Supelco

1.07290

Phosphate modifier

for graphite furnace AAS NH₄H₂PO₄ 100 ± 2 g/l in H₂O

Magnesium nitrate hexahydrate 99.99 Suprapur®

Supelco

1.05855

Magnesium nitrate hexahydrate

99.99 Suprapur®

Magnesium nitrate hexahydrate 99.999% trace metals basis

Sigma-Aldrich

203696

Magnesium nitrate hexahydrate

99.999% trace metals basis

Palladium(II) nitrate solution 10 wt. % in 10 wt. % nitric acid, 99.999% trace metals basis

Sigma-Aldrich

380040

Palladium(II) nitrate solution

10 wt. % in 10 wt. % nitric acid, 99.999% trace metals basis

Ammonium hydrogenphosphate, matrix modifier solution ~40 % (w/v) in H2O, 99.999%

Supelco

428922

Ammonium hydrogenphosphate, matrix modifier solution

~40 % (w/v) in H2O, 99.999%

Nitric acid 65% Suprapur®

Supelco

1.00441

Nitric acid 65%

Suprapur®

Supelco

Supelco

42992

Magnesium Standard for AAS

TraceCERT®, 1000 mg/L Mg in nitric acid

grade

for graphite furnace-AAS

Quality Level

100

mol wt

Mr 256.41 g/mol

concentration

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

cation traces

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

InChI key

FYYHWMGAXLPEAU-UHFFFAOYSA-N

Related Categories

General description

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.[1]

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.[2] It may also be used for determining brain manganese concentrations during graphite furnace atomic absorption spectrometry (GFAAS).[3]

Packaging

50 mL in glass bottle

Signal Word

Danger

Hazard Statements

H272 - H290 - H314 - H332

Hazard Classifications

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

Supplementary Hazards

EUH071

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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