Physical & Chemical Index Test Service

Physical & Chemical Index Test Service

Physical and chemical index is the technical index of physical property, chemical component, and chemical property, indicating the quality of the product. Creative BioMart offers comprehensive physical and chemical indexes test service on various kinds of foods, drugs and chemical products. We provide accurate and consistent analysis result with all necessary details of your sample's physical and chemical properties.

Physical indexes can be important indicators of product quality, such as color, melting point, boiling point, volatility, solubility, density, electrical conductivity, moisture, osmotic, purity and so on. All these indexes describe the physical property of a product in detail, providing a direct cognition of the product.

Chemical indexes usually involve stability, flammability, acidity, alkalinity, oxidability, reducibility, crystal form, pH, etc. Unlike physical index, chemical index often needs to be determined by specialized experiments. Chemical index test can reveal product property at molecular level, and help scientists evaluate products' potential effect and safety (especially for drugs).

Physical and chemical index test items and methods

Item Method
Iodine value Biochemical method
Carbonyl Value Biochemical method
Soap content Biochemical method
Unsaponifiable matter Biochemical method
Polar compounds Biochemical method
Compound phosphate Biochemical method
Acidity Biochemical method
Peroxide value Biochemical method
Hydrogen peroxide Biochemical method
Acid value Biochemical method
Moisture determination Moisture analyzer
pH pH meter
Solvent solid (residue)
  1. Varian Head Space-Gas Chromatography (HS-GC) (FID, TCD, ECD)
  2. Varian Head Space-Gas Chromatography-Mass Spectrometry (HS-GC-MS/MS)
Total nitrogen (organic element analysis) (C, H, N, S, O) Elementary analyzer
Particle size analysis Particle size analysis instrument
Osmotic pressure Osmotic pressure tester
Phase change, melting point, crystallization point, boiling point Differential scanning calorimeter (DSC)
Hygroscopicity DVS dynamic moisture adsorption instrument
Decomposition, oxidation, weight loss/gain Thermogravimetric analyzer
  1. Liquid Chromatography-Mass Spectrometry (LC-MS/MS)
  2. High Performance Liquid Chromatography (HPLC) (ultraviolet, fluorescent, PDA, ELSD)
  3. Waters XevoG2-S HPLC
Metallic elements and part non-metallic elements Inductivity Coupled Plasma Mass Spectrometry (ICP-MS) (Quadrupole)
Optical rotation, crystal form, polymorphism, crystal water, absorptivity, pKa, solubility
  1. B + S rotation meter
  2. DSC
  3. X-Ray Diffractor
Dissolution rate and disintegration time
  1. Dissolution tester
  2. Disintegration tester
Chiral analysis
  2. Varian Gas Chromatography (GC) (FID、TCD、ECD)
Content uniformity test
  1. Waters HPLC (Ultraviolet, fluorescence, PDA, ELSD)
  2. Varian GC(FID, TCD, ECD)
Solution physical and chemical stability
  1. Waters HPLC (Ultraviolet, fluorescence, PDA, ELSD)
  2. Varian GC(FID, TCD, ECD)

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