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Microreader™ 28A Direct ID system

Microreader™ 28A Direct ID system

With advanced 6-dye fluorescent, Microreader™ 28A Direct ID system is a robust and reliable single-amplification STR multiplex kit which amplifies 24 autosome STR loci, 1 Y chromosome STR loci, 2 Y-indel loci and Amlogenin. This kit is optimized for use with database and single-source samples. 

For casework samples, please see “Microreader™ 28A ID System” .


The Microreader™ 28A Direct ID System is a 6-dye, 28-locus STR kit that integrates maximum compatibility with global databasing loci standards, with directed amplification design and superior discrimination power, to enable forensic DNA labs worldwide to maximize information recovery and improve overall efficiency.
The Kit is subjected to rigorous quality control testing to offer consistent performance. We develop and manufacture our products in accordance with ISO 9001 and ISO 18385 quality system requirements.

Key Features

Cover all CODIS and ESS markers, for maximum global database compatibility.
■ Direct amplification & higher efficiency, optimized protocols for blood and buccal samples deposited on swab or paper substrates.
■ Special anti-pollution design for safe and stable amplification.

Highly compatible

The kit contains all of the markers included in the major global databases, covered all CODIS and ESS recommended loci.

Direct amplification & higher efficiency

Without the need for sample extraction, purification and quantification, the entire process from direct amplification of the samples to the PCR products can be completed in 90 minutes, which improves the work efficiency and reduced testing costs, which are very suitable for the processing of large batches of samples. 

Safe & Stable

The kit has an anti-pollution design. When performing STR genotyping, it can remove other PCR products that may be mixed in the amplification tube, avoid personnel contamination or non-specific amplification, and effectively reduce the impact of laboratory aerosol contamination. Increase the success rate of the experiment.

Highly Sensitive

PCR components and conditions are well optimized, which greatly improves sensitivity of the kit. Full STR profiles could still be obtained with DNA input as low as 0.0625 ng. 10 mini-STR (<220bp) could be detected by specifically designed STR loci arrangement, which are very powerful when dealing with degraded samples. 

Combined Use

It can be used in conjunction with the Y chromosome kits: MicroreaderTM Y Prime Plus ID system (please see it in catalogue “Casework Investigation Solutions”.), to create a whole solution plan for DNA database construction, maximizing the use of DNA data and avoiding information waste.

Product Details

Microreader™ 28A Direct ID system Product Details

For Use with (Application)


Unit size

100/200 Reactions

Label or Dye

6 Dye

Product type

PCR amplification Kit

Detection method

Capillary Electrophoresis

Required CODIS markers


Required ESS markers


Shipping Condition

Dry ice

Stroge Condition

Store at –25 to –15°C upon receipt and at 2–8°C after initial use

Target Loci

TH01, D5S818, D21S11, D18S51, D6S1043, Y-inDel, Amel, D3S1358, D13S317, D7S820, D16S539, CSF1PO, Penta DD2S441, VWA, D8S1179, TPOX, Penta E, Y-indel, D19S433, D22S1045, D2S1338, FGA, DYS391, D1S1656, D12S391, D10S1248, SE33