Bufete Químico is an 80-employee company, founded in 1971. Our 1,500 m2 modern facilities are located in Mexico City, with state-of-the art equipment, highly qualified technicians and administrative personnel ready to attend your product and plant analysis requirements. We are also located at Queretaro and Leon, Gto.

BQ has two main areas: Environment and Food, sampling and analysis.

Accreditation/Authorization/Approval by EMA (Mexican Entity for Accreditation) for waste water, residues and chimneys

MAAC for food and drinking water

CONAGUA (National Water Committee)

Visitors are welcome to walk in the labs while their samples are being processed. BQ does not have samples analyzed by second parties for our approved, authorized or accredited studies.


Founded in 1971, Bufete Quimico has been in Mexico an instrumental analysis pioneer: Gas and Liquid Chromatography (GC & HPLC), Atomic Absorption Spectroscopy (AA) and Infrared Spectroscopy (IR).

Initially, the company focused on solving specific and more complex industrial problems, covering secondary petrochemical, pharmaceutical, automotive, paper, etc., as well as tariff issues.

Since 1997, BQ's commercial strategy has been changed to focus its experience and quality on two analytical units: Food and Environmental.

These two units are serviced from our central facilities in Mexico City. The operational area is organized into the following technical departments:

  • Microbiology
  • Food physicochemical analysis
  • Environmental physicochemical analysis
  • Ceramics and toys
  • Gas and liquid chromatography
  • Mineral and metal determination
  • Environmental chemical engineering (environment sampling: water, residues, soil and atmospheric emissions).

To expand the personalized attention to our customers throughout the Mexican Republic by performing environmental and food sampling, we have two support branches located in Querétaro, Qro. and León, Gto. We also receive samples from abroad for analysis, as long as they are NOT dangerous.

Since 2001, the company has a quality system based on international ISO standards. Bufete Químico's management system complies with the international standard ISO/IEC 17025:2017 "General requirements for the competence of testing and calibration laboratories."

test laboratorio

Objective: To ensure that all analyses performed are scientifically valid and legally defensible. Mentioned below are some of the points of the quality management system at BQ:

  • Data traceability: from sampling to test report.
  • Good professional practice procedures
  • Verification of equipment and instruments.
  • Confirmation of test methods
  • Performing initial performance tests on instruments and analysts.
  • Traceability to national standards. (Physical quantities).
  • Internal quality audit program.
  • Participation in proficiency and inter-laboratory tests
  • Compliance with quality control programs that include: control samples, sample fortification, duplicate samples, field targets, reactive targets among others.
  • Statistical control of the analytical process through precision and accuracy control charts.
  • Use of reference materials manufactured by the National Metrology Center (CENAM) of Mexico.
  • Estimation of the uncertainty of analytical measurements following ISO, CENAM and Eurachem guidelines.