Our service

Centre Testing International Co., Ltd. (CTI) is the pioneer and leader in the TIC Industry which provides one-stop solutions on testing, inspection, certification, calibration, audit, training & technical services.


By Industry

Our service capabilties cover the upstream and downstream of the supply chain including textile and apparel,toys,electronic appliances,medical health,food...andother industries.


Comprehensively guarantee quality and safety, promote compliance and innovation, demonstrate brand competitiveness, and achieve higher quality, healthier, safer, and greener sustainable development.

Forensic Toxicology Identification

Forensic toxicology identification is an activity in which forensic toxicants, drugs and metabolites are qualitatively and quantitatively analyzed in vivo and in vitro by forensic toxicology science and technology or specialized knowledge, and identification opinions are provided.

Forensic Toxicology Identification

   Service background

Forensic toxicology identification is the qualitative and quantitative analysis of unknown toxins (drugs), drugs and metabolites in vivo and in vitro using the theories and methods of forensic toxicology combined with modern instrumental analysis technology.It makes a comprehensive identification of poison (drug) poison through the analysis of poison toxicity, toxic mechanism and metabolic function, combined with poisoning manifestations and autopsy findings.

   Service content

Scope of identification

Identification items


Methamphetamine, potassium powder, ecstasy, leprosy, opium, heroin, morphine, cocaine, methadone, etc.

Medical synthetic drugs

Dolantin, triazolam, γ - hydroxybutyric acid, barbital, alprazolam, diazepam, codeine phosphate, etc.



Gaseous poisons

Carbon monoxide, sulfur dioxide, hydrogen sulfide, liquefied petroleum gas, natural gas, etc.

Volatile toxicants

Cyanide, methanol, nitrobenzene, chloral hydrate, aniline, etc.


Dichlorvos, methamidophos, dimethoate, carbofuran, aldicarb, deltamethrin, cartap, etc.


Tetramine, zinc phosphide, bromadiolone, Indanedione rodenticides, etc.


Paraquat, fenoxaprop, fenoxate, sodium pentachlorophenol, etc.

Poisonous animals

Cantharidin, tetrodotoxin, etc.

Metal poison

Compounds containing arsenic, lead, mercury, barium, selenium, cadmium, chromium, etc.

Water soluble inorganic poison

Sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide, potassium hydroxide, nitrite, fluoride, etc.

Other poisons

Other substances that can cause poisoning.

   Our strengths

1. CTI has a number of forensic toxicants forensic experts with intermediate and senior titles. They have rich experience in detection and identification of drug toxicants and drug identification cases in vitro and in vitro, especially in drugs, synthetic drugs, precursor chemicals, metal poisons, herbicides, pesticides and other aspects.

2. CTI has high professional technical strength and first-class inspection and testing equipment, and has participated in the capability verification of CNAS for many times and obtained satisfactory results.It can be used for qualitative and quantitative identification of drug poisons in vivo and in vitro (including blood, hair, urine, etc.