Buffers and Standards
Hydrogen ion buffers comprising a mixture of a weak acid and its conjugate base or vice-versa and used to stabilize pH; also diluents, washing solutions, and standard-value solutions used for a broad array of scientific calibration purposes.
The buffers used to calibrate pH meters may be certified and/or traceable to the National Institute of Standards and Technology (NIST). These buffers may also be color-coded for easy identification:
- Red: pH 4.0
- Yellow: pH 7.0
- Blue: pH 10.0
VeriSpec™ ICP Tuning Solution 15, Ricca Chemical
500 ppm: K; 50 ppm: Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn /nManufactured and Tested
VeriSpec™ ICP Calibration Standard 15, Ricca Chemical
500 ppm K; 50 ppm Al, AS, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn /nManufactured and Tested i
VeriSpec™ ICP Calibration Standard 15, Ricca Chemical
5 ppm: Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se Sr, Zn; 50 ppm K /nManufactured and Tested in
VeriSpec™ ICP Calibration Standard 19, Ricca Chemical
400 ppm Tl; 200 ppm Bi, In, Pb; 150 ppm Ga, 100 ppm Al; 50 ppm Ag, Ni; 25 ppm Cr; 20 ppm Cd, Co, Cu,
VeriSpec™ ICP Internal Standard 6, Ricca Chemical
100 ppm: Bi, In, 6Li, Sc, Tb, Y /nManufactured and Tested in an ISO 17025/Guide 34 Facility
VeriSpec™ ICP Calibration Standard 7, Ricca Chemical
100 ppm: Hf, Ir, Sb, Sn, Ta, Ti, Zr /nManufactured and Tested in an ISO 17025/Guide 34 Facility
Ruthenium ICP Standard, 1000 ppm Ru in 10% HCl, Ricca Chemical
CAS: 14898-67-0 Molecular Formula: Cl3Ru Molecular Weight (g/mol): 207.42 MDL Number: MFCD00149844 InChI Key: YBCAZPLXEGKKFM-UHFFFAOYSA-K IUPAC Name: ruthenium(3+) trichloride SMILES: [Cl-].[Cl-].[Cl-].[Ru+3]
Platinum ICP Standard, 1000 ppm Pt in 3% HCl, Ricca Chemical
CAS: 7440-06-4 Molecular Formula: Pt Molecular Weight (g/mol): 195.08 MDL Number: MFCD00011179 InChI Key: BASFCYQUMIYNBI-UHFFFAOYSA-N PubChem CID: 23939 ChEBI: CHEBI:33400 IUPAC Name: platinum SMILES: [Pt]
Tantalum ICP Standard, 10,000 ppm Ta in 2% HF, Ricca Chemical
CAS: 12022-02-5 Molecular Formula: F7H8N2Ta Molecular Weight (g/mol): 350.015 InChI Key: RDNGDFQMYLJTJR-UHFFFAOYSA-I PubChem CID: 71311477 IUPAC Name: diazanium;heptafluorotantalum(2-) SMILES: [NH4+].[NH4+].F[Ta-2](F)(F)(F)(F)(F)F
Palladium ICP Standard, 1000 ppm Pd in 3% HCl, Ricca Chemical
CAS: 7440-05-3 Molecular Formula: Pd Molecular Weight (g/mol): 106.42 MDL Number: MFCD00011167 MFCD03457879 MFCD03427452 MFCD03613602 MFCD03613603 MFCD03613604 MFCD03613605 MFCD06798745 InChI Key: KDLHZDBZIXYQEI-UHFFFAOYSA-N PubChem CID: 23938 ChEBI: CHEBI:33363 IUPAC Name: palladium SMILES: [Pd]
Rhodium ICP Standard, 1000 ppm Rh in 3% HCl, Ricca Chemical
CAS: 20765-98-4 Molecular Formula: Cl3Rh Molecular Weight (g/mol): 209.26 MDL Number: MFCD00149839 InChI Key: SONJTKJMTWTJCT-UHFFFAOYSA-K IUPAC Name: rhodium(3+) trichloride SMILES: [Cl-].[Cl-].[Cl-].[Rh+3]
Gold ICP Standard, 1000 ppm Au in 3% HCl, Ricca Chemical
CAS: 7440-57-5 Molecular Formula: Au Molecular Weight (g/mol): 196.97 MDL Number: MFCD00003436 InChI Key: PCHJSUWPFVWCPO-UHFFFAOYSA-N PubChem CID: 23985 ChEBI: CHEBI:30050 IUPAC Name: gold SMILES: [Au]
Iridium ICP Standard, 1000 ppm Ir in 10% HCl, Ricca Chemical
CAS: 13569-57-8 Molecular Formula: Cl3H6IrO3 Molecular Weight (g/mol): 352.612 InChI Key: LNJXVUXPFZKMNF-UHFFFAOYSA-K PubChem CID: 6102153 IUPAC Name: trichloroiridium;trihydrate SMILES: O.O.O.Cl[Ir](Cl)Cl
Gold ICP Standard, 10,000 ppm Au in 5% HCl, Ricca Chemical
CAS: 7440-57-5 Molecular Formula: Au Molecular Weight (g/mol): 196.97 MDL Number: MFCD00003436 InChI Key: PCHJSUWPFVWCPO-UHFFFAOYSA-N PubChem CID: 23985 ChEBI: CHEBI:30050 IUPAC Name: gold SMILES: [Au]