Carb-GCB

Carb GCB graphitized carbon black
Herbicides extracted from drinking water
Carb GCB (graphitized carbon black) is composed of nonporous and lamellar molecules. It has a positive six membered ring structure with aromaticity and has a double retention mechanism of reverse phase and ion exchange. It can retain both nonpolar compounds (such as organochlorine insecticides) and strong polar compounds (such as surfactants).
Carb GCB is a flaky material with no pores, so the extraction speed is very fast, and the adsorption capacity is larger than silica gel.
Fast extraction
Suitable for large volume sample
parameter
Specific surface area: 100 m² / g
Particle size: 100-300 mesh
application
-Detection of organochlorine pesticides, ethyl carbamate, alkaloids and mycotoxins in water, beverages, vegetables and seafood
-Remove pigments from fruits and vegetables
Relevant standards
-EPA 523 detection of triazine herbicides and their degradation products in water
-EPA 535 detection of chloroacetamide and other acetamide herbicides in drinking water

Carb GCB / NH₂ graphitized carbon black / aminopropyl

Sample purification for pesticide multi residue detection

Carb GCB / NH₂, double-layer SPE concentrate the advantages of GCB and NH₂, can remove the interference components such as pigment, sterol and fatty acid in food, and is suitable for sample purification of pesticide multi residue detection.

Ultra thin sieve plate barrier and uniform flow rate between two layers of fillers can maximally remove the interferences in the sample

GCB parameters

Specific surface area: 100 m²/g

Particle size: 100-300 mesh

NH₂, parameter

Carbon content: 4.5%

Specific surface area: 200 m²/g

Average particle size: 40-75μm

Aperture: 100Å

application

-Detection of pesticide residues in food

Relevant standards

-NY / t1379-2007 determination of 334 pesticide residues in vegetables by gas chromatography-mass spectrometry and liquid chromatography-mass spectrometry

-Db34t 1076-2009. Determination of 40 organophosphorus and carbamate pesticide residues in vegetables, fruits, grains and tea by gas chromatography

Sample purification of carb GCB / PSA graphitized carbon black / diamine-n-propyl for pesticide multi residue detection

Carb GCB / PSA has similar retention capacity as carb-gcb / NH₂, and is suitable for the purification of samples for pesticide multi residue detection. PSA has one more secondary amino group than NH₂, so its ion exchange capacity is larger. PSA can be used as a complex ligand for some metal ions, providing selectivity different from carb GCB / NH₂.

Ultra thin sieve plate barrier and uniform flow rate between two layers of fillers can maximally remove interferences in the sample, which has greater retention capacity than carb GCB / NH₂

GCB parameters

Specific surface area: 100 m²/g

Particle size: 100-300 months

PSA parameters

-Specific surface area: 500 m²/g

-Carbon content: 8%

-Particle size: 40-75μm

-Average aperture: 100Å

application

-Removal of fatty acids and other components in the detection of food pesticide residues

-Detection of nicotine pesticide residues in cotton soil, fruit and wine