Magnesium matrix modifier
SIAL/63043 - for graphite furnace-AAS
Synonym: Magnesium nitrate – nitric acid solution; Magnesium modifier
CAS Number: 13446-18-9
MDL Number: MFCD00085308
Product Type: Chemical
| 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 | |
| concentration | 10.0 g/L±0.3 g/L Mg (in ~17% nitric acid) |
| grade | for graphite furnace-AAS |
| InChI | 1S/Mg |
| InChI key | FYYHWMGAXLPEAU-UHFFFAOYSA |
| mol wt | Mr 256.41 g/mol |
| Quality Level | 100  |
| 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). |
| 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. |
| Packaging: | 50 mL in glass bottle |
| Symbol |    GHS03,GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H272 - H290 - H314 - H332 |
| Precautionary statements | P210 - P220 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 2031B 8 / PGII |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Supplemental Hazard Statements | EUH071 |
| UNSPSC | 12000000 |