Biochip Array Technology

Our Multiplexing Technology

Biochip Array Technology offers simultaneous detection of multiple drug classes from a single specimen.

Moving away from traditional single analyte assays, Biochip Array Technology boasts cutting-edge multiplex testing capabilities providing rapid and accurate drug detection from a single sample. Based on ELISA principles, the biochip is a solid state device with discrete test sites onto which antibodies specific to different drug compounds are immobilised and stabilised. Competitive chemiluminescent immunoassays are then employed, offering a highly sensitive screen.

Designed to work across a wide variety of matrices, this revolutionary multi-analyte testing platform allows toxicologists to achieve a complete immunoassay profile in the initial screening phase. Offering the most advanced screening technology on the market, Randox Toxicology has transformed the landscape of drugs of abuse testing. Our six drugs of abuse biochip arrays form part of our unrivalled toxicology test menu capable of detecting over 500 drugs.

Features & Benefits

No. 1 Supplier of NPS Tests

New Psychoactive Substances including four Synthetic Cannabinoids (SPICE), three Synthetic Cathinones (Bath Salts), NBOMe and DOx Series.

Simultaneous Analyte Detection

The multiplex testing capabilities of Biochip Array Technology facilitates simultaneous screening of various drug metabolites from a single sample.

Accurate Testing

Multiplex analysis minimises analytical variation between tests and has a proven high standard of accurate tests results with CVs typically <10%.

Small Sample Volume

Biochip Array Technology requires a small volume of sample to produce a complete sample profile, leaving more sample remaining for confirmatory testing.

Extensive Test Menu

Six drugs of abuse biochip arrays are available and form part of the world's largest toxicology test menu which can facilitate screening of over 500 drugs of abuse.

Optimum Efficiency

Multi-analyte controls and calibrators and multiplex testing capabilities facilitate laboratory efficiency and deliver a cost consolidating solution for the toxicology laboratory.

Biochip Testing Platforms

Product randox toxicology revolutionary technology evidence evolution

Evidence Evolution

  • Fully automated, random access analyser
  • 2640 tests per hour
  • Ideal for high throughput labs
Product evidence  small


  • Fully automated immunoanalyser
  • >1500 tests per hour 
  • Ideal for high throughput laboratories
Product randox toxicology revolutionary technology multistat

Evidence MultiSTAT

  • Automated, bench top analyser
  • 60 tests per hour
  • Workplace drug testing or custody suites

Product randox toxicology biochip array technology evidence investigator analyzer  1

Evidence Investigator

  • Semi-automated, bench top analyser
  • 702 tests in 70 minutes
  • For small to medium sized laboratories


Accurate, fast, reliable

Randox Toxicology provides highly sensitive ELISA kits for the rapid detection of drugs and metabolites in various biological specimens. An Enzyme-Linked Immunosorbent Assay, or ELISA, is a test which uses antibodies to detect the presence of a substance. A 96-well microtitre plate is supplied precoated with an antibody. If the drug being tested is present in the sample, it will compete with the horseradish peroxidase enzyme labelled antigen for a limited number of antibody sites on the microtitre plate. Results are produced based on an enzymatic colour change.

Randox Toxicology has an ever expanding test menu which includes a range of New Psychoactive Substances, drugs of abuse, stimulants, analgesics and sedatives. Significant re-investment in Research and Development allows Randox Toxicology to develop assays with relevant values and optimise them for best performance in a variety of matrices. Offering excellent cross-reactivity and unrivalled limits of detection, Randox Toxicology develops the highest quality ELISAs available on the market, with results providing excellent correlation with confirmatory methods. 

Features & Benefits

Excellent Precision

Intra and inter assay precision typically <10% CV offering highly sensitive accurate detection of drugs of abuse and drug metabolites with excellent correlation with GC/MS. 

Multiple Matrices

Measurement of drug residues in various matrices including whole blood, urine & oral fluid that are compatible with all microplate processing instruments. 

Manufactured in UK

Our range of ELISA kits are manufactured using our own antibodies in the UK, providing the highest quality toxicology screening solutions for any laboratory. 

Highly Sensitive

Sensitive ELISA kits offer excellent cross-reactivity and unrivalled limits of detection on a range of routine and novel assays including designer drugs. 

Cost Consolidation

Randox Toxicology offers a cost effective ELISA solution for drugs of abuse screening, with lower set-up costs as no expensive equipment is required.

Laboratory Efficiency

Ready to use reagent format facilitates optimum laboratory efficiency and allows up to 80 samples to be analysed in 2 to 3 hours with ELISA.

* EXCLUSIVE to Randox Toxicology 

Microplate Readers Available

Product ds2 7


  • Fully automated compact reader
  • Processes 100 samples per run
  • Ideal for routine drug detection

Product elx800 cutout tox logo


  • Semi-automated robust microplate reader
  • Reads 96 wells in 30 seconds
  • Ideal for routine drug detection


Expertise in Reagent Optimisation

Randox Toxicology Drugs of Abuse (DoA) and Therapeutic Drug Monitoring (TDM) assays, together with the RX series analysers, provide a total package for toxicology testing. RX series Drugs of Abuse screening employs well-known enzyme immunoassay techniques, while the Therapeutic Drug Monitoring assays use latex enhanced immunoturbidimetric reagents which offer excellent performance on a variety of platforms. To complete the package, Randox Toxicology offer a range of calibrators, quality control sera and EQA schemes for DoA and TDM screening.

Features & Benefits

Exceptional Correlation

Excellent correlation with Gas Chromatography/Mass Spectrometry (GC/MS) provides a highly accurate solution for toxicology screening.

Renowned Methodology

Majority of Randox drugs of abuse tests are homogenous enzyme immunoassays, providing laboratories with a choice of qualitative or quantitative results.

Ready To Use

Liquid ready-to-use reagents, calibrators and controls offer a convenient and simple method of drug detection and reduce the risk of errors occurring.

SciTeck® Compatibility

All reagents are compatible with SciTeck® adulteration applications, ensuring any laboratory samples which have been tampered with do not evade detection.

RX series analysers available

Product monaco copy

RX monaco

  • Fully automated, random access analyser
  • 170 tests per hour
  • Ideal for low-mid volume testing
Product imola copy

RX imola

  • Fully automated, random access analyser
  • 400 photometric tests per hour
  • Ideal for medium throughput laboratories
Product daytona  copy

RX daytona+

  • Fully automated analyser
  • 450 tests per hour 
  • Ideal for mid volume laboratories

Quality Control Material

Tailor made quality control material to your exact specifications

We know how important Quality Control is to your laboratory.  It plays a crucial role in toxicology testing in order to prevent errors and to reduce the risk of an incorrect result being reported.  By regularly monitoring the performance of laboratory systems and processes, you can quickly identify issues and resolve them.

Randox Toxicology offer a range of flexible Quality Control Solutions to enable you to do just that; providing you with confidence in your results and ensuring quality standards are met at every stage of the testing process. You can build your own quality control that is relevant to your testing. Choose the compounds, concentrations, matrix, vial size and volume of quality control that you need.  Your new multidrug control can consolidate all your existing controls into one; reducing wastage and costs while providing you with confidence in your results and stock management improvements.

Features & Benefits

Leading Quality

Reliable UK source of raw material ensures consistency of control material. Base material replicates sample with no lot to lot variation.

Third Party Controls

True third party controls provide an unbiased assessment as they are not enhanced by manufacturers to only work with a particular method.

Consistent Material

100% human material sourced from the United Kingdom Blood Transfusion Service with no preservatives or additives ensuring excellent stability and no changes in values

Flexible Design

Tailor made quality control material to minimise waste including the numbers of analytes, vial sizes, concentrations or format we present current products in.

Excellent Stability

Lyophilised quality controls offers stability at +2 - 8°C for up to 4 years from the date of manufacture, once reconstituted remain stable for 7-14 days.

Accurately Assigned Values

Unique value assignment process employs over 32,000 laboratory participants worldwide ensuring the availability of data for a wide range of instruments and methods.

UK: +44 (0)28 9442 2413
USA: +1 304 728 2890