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Welcome to learn about our high-quality analytical chemistry products for precise and reliable laboratory testing in the life sciences. Find the latest instruments, reagents, and consumables for instrument calibration, volumetric analysis, reference materials, chromatography, and spectroscopy.
Analytical Reagents
We provide analytical reagents for wet chemistry, chromatography, spectrometry, analytical microbiology, microscopy, titration, water quality control, and electrochemistry. Our reagents include high-purity acids, bases, and solvents, as well as specialty reagents for a variety of analytical applications, such as plasmas, Karl Fischer titrators, and derivatization reagents. We offer reagents in various purity grades, from AR and GR to high-purity reagents for ultra-trace analysis.
Reference Materials
Howei offers a portfolio of over 20,000 reference materials, covering fields such as environment, petrochemicals, pharmaceuticals, clinical diagnostics and toxicology, forensics, food and beverage, GMOs, cosmetics, and veterinary medicine. Many of our products comply with national pharmacopoeias and European pharmacopoeias. Our subsidiary brand, Codow®, provides over 20,000 standard solutions and reference materials. We also offer efficient OEM and customized products and services.
- ChP Standards
- General Reference Standards
- Environmental Analysis & Pesticide Standards
- Certified Reference Materials
- ICP & AAS Standards
- Food Additive Standards
- Amino Acid Peptide & Protein Standards
- Carbohydrate Standards
- Metrological Institutes Standards
- Microbiology Standards
- Pharmaceuticals Standards
- Physical Property Standards
- Vitamin Standards
- Phytochemical Standards
- EP Reference Materials
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Instrument Calibration
Howei provides standards and reference materials covering seven major categories of instruments, including biological, chemical, physical properties, radio, electromagnetic, mechanical, and thermal, which are widely used in common laboratory calibration needs such as pH meters, turbidimeters, and conductivity meters.
Analytical Chromatography
Howei offers a wide range of products in chromatography, including adsorption, partition, steric excluding, ion exchange, affinity, and chiral chromatography. H&W's chromatographic analysis products deliver accurate and excellent results in a variety of analytical applications, including high-performance liquid chromatography (HPLC), gas chromatography (GC), trace elemental analysis, classical analysis, air monitoring, food and beverage analysis, and proficiency testing.
Sample Preparation
Howei's sample preparation product line covers the pretreatment processes for analytical testing, involving steps such as collection, crushing, purging and trapping, filtration, extraction, and pulverization, and is applied in fields such as rock and mineral analysis. It includes ball mills, agate mortars, and solid-phase extraction equipment.
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Product No.Product NameProduct Spec.BrandPrice
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c[(NH4)2Fe(SO4)2·6H2O]＝0.25 mol/LCodow
