Return to EMD Chemicals Corporate Home Page
  Technical Resources Bookmark this Site  
  Corporate Products Applications How to Order About Us
   
 
Search by Product Name, Catalog #, CAS# or Chemical Formula
   
Return to Lab Chemicals Home Page Contact Us Cross Reference Email this page Help

Grade Definitions of EMD Chemicals Inc.
  OmniTrace Ultra
OmniTrace
OmniSolv
Biotechnology
OmniPur
DriSolv
Suprapur
HPLC
Residue Grade
AnalaR
GR ACS
MultiPharm/
USP/NF
Guaranteed
Reagent
Technical/
Practical
 

Grade Definitions


OmniTrace Ultra™
Grade Acids
Highest purity grade available.
PPT purity.
Test by ICP/MS after concentration.
Packaged in pre-cleaned PTFE bottles.
CoA's report results for more than 60 elements and ions.
OmniTrace® Grade Acids Higher purity than Reagent Grade.
PPB purity.
Suitable for trace-metal analysis.
Packaged in poly coated glass bottles.
Actual lot analysis on the label.
OmniSolv® HR-GC
Grade Solvents
Highest purity solvents available.
Tested for suitability for High Resolution Gas Chromatography.
Capillary GC impurities at parts per trillion levels by ECD / parts per billion level by FID.
Capillary GC-FID & ECD chromatograms of 1000:1 concentrate provided on each bottle.
Actual lot analysis on label.
OmniSolv® Grade Solvents High purity solvents.
Manufactured using state-of-the-art purification equipment.
Tested for suitability in HPLC including gradient analysis, Spectrophotometry, Residue Analysis and Gas and Liquid Chromatography as listed in the individual monographs in the catalog.
Specially purified products tested for environmental analysis (example: Methanol for Purge and Trap).
Actual lot analysis on label.
OmniSolv® Biosynthesis Solvents High purity biotechnology solvents.
Tested for suitability for biomolecular synthesis, sequencing and chromatographic separations under gradient and isocratic conditions.
Solvents are amine-free, 99.9+% purity, low water content and low acidity.
Actual lot analysis on label.
Biotechnology Grade Solvents Suitable for DNA and peptide synthesis.
99.9+% purity.
Low free amines.
Low water content.
OmniPur® Molecular Biology Grade Reagents Suitable for use in biological applications.
Materials procured and handled to minimize potential of biological contamination.
Where possible and applicable, tested to be free from RNase, DNase and Protease contamination.
Where possible and applicable, tested to be free from other biological contamination or absorbance interferences.
DriSolv® Anhydrous Solvents Septum-Sealed bottles.
Water content as low as >10ppm.
Specifically designed for organic synthesis.
Available in 100ml and 1L bottles and EM ReCycler® containers from 20L to 1,250L.
Suprapur® Grade High purity acids, salts and solutions.
PPB trace-metal purities.
Suitable for most instrumental analyses.
Acids are packaged in borosilicate glass bottles; salts in poly bottles.
HPLC Grade High purified organic solvents, acids, salts, ion-pair reagents and mobile phases.
Specifically tested for UV transmittance at multiple wavelengths.
Solvents meet ACS specifications.
Solvents are available in poly coated glass bottles and EM ReCycler® containers from 18.9L to 1,250L.
HPLC Grade Acids/Salts Higher purity than Reagent Grade.
Tested at one or more UV wavelengths.
Packing poly-coated glass bottles or poly bottles.
Residue Grade Solvents Solvents tested for suitability in Pesticide Residue Analysis.
AnalaR® Reagents AnalaR® analytical reagents feature trace metal testing of solvents, acids and salts. These additional purity requirements allow their use in the most critical of laboratory applications.
AnalaR® specifications are the historical European standard of analytical reagents for laboratory use.
Specifications for AnalaR® products are more comprehensive than ACS grade testing for more AA and ICP analytes to enhance quality assurance.
GR ACS Grade Reagent grade that meets or exceeds ACS specifications.
MultiPharm/USP/NF Grade Pharmaceutical grade chemicals, cGMP manufactured and tested to meet USP and many international pharmacopeia standards.

  BP = British Pharmacopeia
DAB = German Pharmacopeia
DAC = German Pharmaceutical Codex
FCC = Food and Chemical Codex
JFSA = Japanese Standards for Food and Additives
JP = The Pharmacopeia of Japan
NF = The National Formulary
OAB = Austrian Pharmacopeia
OAC = Austrian Pharmaceutical Codex
Ph Eur = European Pharmacopeia
Ph Franc = French Pharmacopeia
Ph Helv = Swiss Pharmacopeia
Ph Nord = Pharmacopeia Nordica
USP = The United States Pharmacopeia
Guaranteed Reagent (GR) Suitable for use in analytical chemistry, products meet or exceed American Chemical Society (ACS) requirements where applicable.
Grade applies to both solid and liquid chemicals.
Technical/Practical Grade Selected economical grade of commercial purity, less than reagent grade.



  Lab Chemicals  |  Biosciences  |  Life Science Solutions  |  Corporate  |  Privacy |  Sitemap
EMD Chemicals is Merck KGaA, Darmstadt, Germany in the US and Canada.