USP-PQRI Column Database

Bonna-Agela, a chromatography specialty company, has developed many HPLC methods for Pharmacopoeia applications. Many of these methods using Bonna-Agela columns have been acknowledged by USP-PQRI column database for better solutions of HPLC applications. Detailed information and methods of selection of your HPLC columns can be found at here.

* Fengyan Jia, Wenwen Wang, Juan Wang, Jungang Yin, Yongming Liu and Zhenbo Liu (2012) New strategy to enhance the extraction efficiency of pyrethroid pesticides in fish samples using a modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) method, Anal. Methods, 4, 449-453; DOI: 10.1039/C2AY05681J


Determination melamine in fish, milk and eggs by MAS-HPLC

Instrument: L6-1 series HPLC

Sample preparation method kit for melamine determination, including HCl 0.1mol/L, 6% sulfosalicylic acid, Venusil SCX-M and its guard cartridge; syringe filter; melamine standard (>99%);

Reagents: acetonitrile (chromatographic grade), potassium dihydrogen phosphate (analytical grade), ultrapure water.

Releated product from Bonna-Agela

Products Speciafication Cat.No
Clarinert syringe filters 0.45 µm, nylon AS021320-T
0.22 µm, nylon AS021345-T
Cleanert MAS SPE Cartridge Special designed for melamine extraction MS-SPM5001
Venusil SCX-M HPLC Column 4.6*250mm, 5µm, 300Å
Guard cartridge 4.6*10mm, 4/pk VSc950105-0

More methods:

Determination of β-Estradiol Residues in Fish/Shellfish Muscle by Gas Chromatography-Mass Spectrometry

Say Goodbye to Complex Tea Leaves Analysis

Pesticide residues in tea leaves always raise public concerns as drinking tea is an integral part of everyday routine for many people. Also, pesticide residues may cause acute or chronic adverse health effects. There are hundreds of pesticides in the tea and the residue level of pesticide in the tea brew is closely related with the water solubility of pesticide. The higher water solubility of pesticide showed higher extractive rate of pesticide during the brewing process from dry tea.

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