63043

Magnesium matrix modifier

for graphite furnace-AAS

• Sinonimo/i: Magnesium nitrate – nitric acid solution, Magnesium modifier
• Numero CAS: 13446-18-9
• Beilstein: 4948473
• Numero MDL: MFCD00085308
• Codice UNSPSC: 12000000
• eCl@ss: 32129211
• ID PubChem: 329759765
• NACRES: NA.21

Proprietà

• Grado: for graphite furnace-AAS
• Livello qualitativo: 100
• PM: M_r 256.41 g/mol
• Concentrazione: 10.0 g/L±0.3 g/L Mg (in ~17% nitric acid)
• Cationi in tracce: 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; FYYHWMGAXLPEAU-UHFFFAOYSA-N

Descrizione

Descrizione generale

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.

Applicazioni

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).

Informazioni sulla sicurezza

• Pittogrammi: GHS03,GHS05,GHS07
• Avvertenze: Danger
• Indicazioni di pericolo: H272,H290,H314,H332
• Consigli di prudenza: P210 - P220 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Classi di pericolo: Acute Tox. 4 Inhalation - Eye Dam. 1 - Met. Corr. 1 - Ox. Liq. 3 - Skin Corr. 1B
• Rischi supp: EUH071
• Codice della classe di stoccaggio: 5.1B - Oxidizing hazardous materials
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable
• Dispositivi di protezione individuale: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter