The purity grade of reagent helps us to classify the large variety of reagents that exist in the market. Purity grade is expressed in the product name by means of a quality denomination that follows to the product nomenclature (i.e. "Guaranteed Reagent" or "Extra Pure"). Several quality denominations are common to all manufacturers but, in addition, every manufacturer creates its own quality denominations for specific applications.
The purity levels and physical and chemical values indicated for the products in this catalogue represent typical values. These percentages and measures are not norms, nor are they specifications.
The grading and types of use summarized as follows:
Technical grade
These products are suitable for non-critical tasks in the laboratory such as rinsing, dissolving or are used as raw materials in production tasks.
Synthesis reagents
Those reagents those are suitable for organic synthesis and preparative applications.
Extra Pure grade
This quality is associated to products that are suitable for qualitative and semi-quantitative grades. These chemicals suitable for general laboratory works, and in most cases, meet Most Pharmacopoeia (BP, USP etc.) Standards.
Pharmacopoeia Grade
Products and solutions meeting the purity requirements of chemical products admitted in the pharmaceutical sector (pharmacopoeia requirement such as NF, BP, USP, Ph Eur, DAB, DAC, JP, Ph Franc..)
For Analytical Purpose
This quality is suitable for most?analytical application, research and quality control.?
Guaranteed Reagent (GR)
It is the ideal quality for laboratory purposes. Batch to batch reproducibility is specially controlled to guarantee consistent analytical results. The grade is equivalent to Analytical grade (A.R.) Reagent grade (R.G.), p.a. nomenclature of other manufacturers.
ACS reagent
Reagents meets the specification of American Chemical Society (ACS) Analytical reagents found in most laboratories and are used in a wide variety of analytical techniques for quality control, research and development.
HPLC reagent
Product range is specially made for high performance liquid chromatography. Within this range there are different qualities depending on whether they will be used for preparative chromatography or analytical in isocratic or gradient mode. The range includes high purity solvents, tested to meet strict UV absorbance specifications as well as ion pair reagents.
Ion Pair Reagents
Ion pair chromatography is done when the analytes of interest include ionic compounds that are difficult to separate by reverse phase chromatography. Ion pair reagents are added to the movil phase and combine with ionic analytes. The neutral compounds formed can be easily chromatography by reverse phase HPLC. We offer both cationic and anionic ion pair reagents in special HPLC grade qualities to assure trouble-free separations.
Pesticide & GC residue
Solvents are specially tested to avoid organic impurities at ppt levels. These solvents are specially purified in a multi-step process using only glassware equipment. Inert conditions are kept during bottling to assure optimum performance and to avoid any possibility of contamination.
Dry & Anhydrous
Solvents with a very low water content, applicable for analytical purposes or organic synthesis. Dry solvents are traditionally used in water determinations according to Karl Fischer and anhydrous solvents are becoming more necessary in the new organic and inorganic chemistry research techniques. In our catalogue, you can also find extra-dry grade solvent or extra-dry with molecular sieves.
Peptide and DNA synthesis
The most important features of these products are low UV absorption and low water content.
Spectroscopy grade
Solvents display a high UV permeability and are subject to strict IR Spectroscopy tests.
Food/ FCC grade
Products meet the strength specifications and maximum impurity limit indicated in the Food Chemicals Codex (FCC)
Molecular biology reagents
These products are specially controlled to guarantee the absence of enzymes that could interfere in the analysis and an adequate transparency for the detection techniques used in molecular biology.
Biotech/ Biochemistry grade
Highly pure reagents suitable for biochemical research and analysis. The critical parameters involved are absence of inhibitors such as traces of heavy metals as well as biochemical function tests for enzymes, coenzymes and enzyme substrates.
Microbiology grade
Microbiological products with some dehydrated culture media auxiliary agent and other manual systems in its range.
Fluorescence grade
Fluorescence HPLC grade is gradient and fluorescence controlled. It is specially suitable for PAH analysis by HPLC
For Microscopy
Various types of chemicals and reagents for microscopy use.
GPC reagent
Specially stabilized Tetrahydrofuran is available for GPC (gel permeation chromatography). This THF can be used for column-storage, since it does not form damaging peroxoides.
Cell Culture grade
Cell culture reagents include cell culture media, laboratory preparations, biological extracts, selective and sterile reagents for several applications.
Proteomics
Proteomics defined as the qualitative and quantitative comparison of proteomes under different conditions to further unravel biological processes, we offer reagents for this usage
Histology grade
The solvents and reagents purity meets the histological uses.
Ultra pure grade
Ultra pure reagents are used in inorganic trace analysis where impurities must be low in the ppt or ppb level. Each reagent is delivered complete with a lot analysis certificate.
Electronic/ VLSI/ ULSI/ SLSI grade
Reagents used for semiconductor industry, cations, anions and particles value guarantee to ppm to ppb level. Our range of chemicals covers all products required in cleaning and etching processes for semiconductor production.
ASTM products
In the analysis of oil derivatives it is of interest that the reagents and apparatus are manufactured under the American Society of Testing and Materials guidelines.
Acids with low mercury content
These acids are used in environmental analysis when analyzing traces of mercury, and assure that no interferences are added to the samples because of the acids.
AA and ICP standard solutions 1000ppm
They are made out of high-purity salts and acids, or bases. The accuracy of its concentration is checked by using titrimetric and gravimetric methods. These solutions can be used in atomic absorption spectroscopy, polarography or colorimetric techniques. They are traceable to NIST with certificate
Volumetric solutions
Ready to use volumetric solutions and most of them are traceable to NIST.
pH buffer solution
Ready to use buffer solutions for pH-meter calibration. They are accurate and traceable to NIST. Colored solution of pH 4, 7, 10 available for easy differentiation.
Karl Fischer reagent
Karl Fischer titration is widely used to quantify water content in many different samples. It is used both in industrial processes and in quality control laboratories. Our KF reagents are pyridine-free, which contain non toxic imidzole. It has a good buffer capacity and allows fast and stable titration end-points
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