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3CR Bioscience Limited’s patented genotyping chemistry, PACE, is the latest in allele-specific chemistry. It provides consistent results.
Plasma/Serum Cell-Free Circulating DNA Purification Kits Dx

Overview
- Concentrate circulating DNA into a flexible elution volume ranging from (25 µL – 50 µL)
- Isolate inhibitor-free cell-free circulating DNA
- Compatible with Streck Cell-Free DNA BCT® Tubes
- Purification is based on spin column chromatography that uses Norgen’s proprietary resin separation matrix
- Research use format is also available
These kits provide a fast, reliable and convenient spin column method for the isolation of high quality, high purity and inhibitor-free cell-free circulating DNA (cfc-DNA) from plasma/serum sample. These kits are designed to isolate all sizes of cfc-DNA from either fresh or frozen plasma/serum samples and the purified DNA is eluted into a flexible elution volume ranging from 25 µL to 50 µL. The purified plasma/serum cfc-DNA is fully compatible with all downstream applications including PCR, qPCR, methylation-sensitive PCR and Southern Blot analysis, microarrays and NGS.
Background
Plasma/Serum cell-free circulating DNA (cfc-DNA) has the potential to provide biomarkers for certain cancers and disease states as well as fetal DNA in maternal blood. Currently, significant advancements are being made in utilizing cfc-DNA as biomarkers for the early diagnosis, prognosis and monitoring of therapy for several cancer types and autoimmune diseases. Cell-free mitocondrial DNA (cfmtDNA) is also under investigation for its clinical significance. This cfc-DNA is usually present as short fragments of less than 1000 bp. In addition, cell-free fetal DNA has been widely used as a non-invasive method for prenatal diagnosis including early identification of fetal sex, genetic studies for families at high risk for inherited genetic disorders, screening for Rhesus factor, screening for aneuploidy and identification of preeclampsia.
Plasma/Serum Cell-Free Circulating DNA Purification Micro Kit Dx
For serum input volumes 10 µL – 200 µL. Purify high-quality DNA in 15-20 minutes
Plasma/Serum Cell-Free Circulating DNA Purification Mini Kit Dx
For serum input volumes 200 µL – 500 µL. Purify high-quality DNA in 15-20 minutes.
Plasma/Serum Cell-Free Circulating DNA Purification Midi Kit Dx
The first column will handle the large volume input of bodily fluids that is followed by a concentration on a mini column for a final elution of 25 µL to 50 µL. All components for the purification & concentration are provided in one convenient & fast kit for the easy processing of large input volumes of bodily fluids. For a schematic workflow of the protocol click here to view. For serum input volumes 1 mL – 4 mL. Purify high-quality DNA in 90 minutes.
Plasma/Serum Cell-Free Circulating DNA Purification Maxi Kit Dx
The first column will handle the large volume input of bodily fluids that is followed by a concentration on a mini column for a final elution of 25 µL to 50 µL. All components for the purification & concentration are provided in one convenient & fast kit for the easy processing of large input volumes of bodily fluids. For a schematic workflow of the protocol click here to view. For serum input volumes 5 mL – 10 mL. Two kits in one – purify and concentrate DNA from bodily fluids using a convenient two column system.
Details
Supporting Data
Figure 1 / 12
Click for expanded view
| Kit Specifications | |
| Minimum Plasma/Serum Input | 10 μL |
| Maximum Plasma/Serum Input | 200 μL |
| Size of DNA Purified | ≥ 50 bp |
| Elution Volume | 25-50 μL |
| Time to Complete 10 Purifications | 15-20 minutes |
| Average Yields* | Variable depending on specimen |
*Please check page 7 in the product manual for the Plasma/Serum Average Yields and the Common DNA Quantification Methods.
Storage Conditions and Product Stability
All buffers should be kept tightly sealed and stored at room temperature (15-25°C) for up to 2 years without showing any reduction in performance. Norgen’s Plasma/Serum Cell-Free Circulating DNA Purification Kits contain ready-to-use Proteinase K solution, which is dissolved in a specially prepared storage buffer. The Proteinase K is stable for up to 2.5 years after delivery when stored at room temperature. To prolong the lifetime of Proteinase K, storage at 2–8°C is recommended.
| Component | Cat. Dx55100 (50 preps) | Cat. Dx55500 (50 preps) | Cat. Dx55600 (20 preps) | Cat. Dx55800 (10 preps) |
|---|---|---|---|---|
| Binding Buffer B | 2 x 40 mL | 40 mL | 2 x 85 mL 1 x 12 mL | 2 x 85 mL 1 x 40 mL |
| Proteinase K | 2 x 1 mL | 0.6 mL | 6.5 mL | 8 mL |
| Solution WN | 18 mL | 18 mL | 18 mL | 18 mL |
| Wash Solution A | 38 mL | 18 mL | 18 mL | 18 mL |
| Elution Buffer B | 8 mL | 8 mL | 30 mL | 30 mL |
| Micro Spin Columns | 50 | 50 | 20 | 10 |
| Mini Spin Columns | 50 | – | – | – |
| Midi Spin Columns | – | – | 20 | – |
| Maxi Spin Columns | – | – | – | 10 |
| Collection Tubes | 100 | 50 | 20 | 10 |
| Elution Tubes (1.7 mL) | 100 | 50 | 20 | 10 |
| Product Insert | 1 | 1 | 1 | 1 |
[PM5000] ExcelBand™ 3-color Pre-Stained Protein Ladder, Regular Range (9-180 kDa), 250 μl x 2

Description
The PM5000 ExcelBand™ 3-color Pre-Stained Protein Ladder Regular Range is a ready-to-use three-color protein standard with 13 pre-stained proteins covering a wide range of molecular weights from 10 to 180 kDa in Tris-Glycine Buffer (9 to 170 kDa in Bis-Tris (MOPS) buffer and 10 to 170 kDa Bis-Tris (MES) buffer). Proteins are covalently coupled with different chromophores for easy identification of bands, with three reference proteins carrying enhanced intensity corresponding to a blue band at 20 kDa, green at 40 kDa, and red at 75 kDa, respectively, as separated on SDS-PAGE (Tris-Glycine buffer). The PM5000 ExcelBand™ 3-color Pre-Stained Protein Ladder Regular Range is designed for monitoring protein separation during SDS-polyacrylamide gel electrophoresis, verification of Western transfer efficiency on membranes (PVDF, nylon, or nitrocellulose) and for approximating the size of proteins.
Features
- Ready-to-use — Premixed with a loading buffer for direct loading, no need to boil.
- Three reference bands — 75 kDa (red), 40 kDa (green), and 20 kDa (blue)
Contents
Approximately 0.1~0.4 mg/ml of each protein in the buffer (20 mM Tris-phosphate (pH 7.5 at 25°C), 2% SDS, 0.2 mM DTT, 3.6 M urea, and 15% (v/v) glycerol).
Quality Control
Under suggested conditions, PM5000 ExcelBand™ 3-color Pre-Stained Protein Ladder Regular Range resolves 13 major bands in SDS-PAGE (Tris-Glycine, MOPS, and MES buffer) and after Western blotting to nitrocellulose membrane.
Storage
4°C for 3 months
-20°C for long term storage
The PM5000 ExcelBand™ 3-color Pre-Stained Protein Ladder Regular Range is a ready-to-use three-color protein standard with 13 pre-stained proteins covering a wide range of molecular weights from 10 to 180 kDa in Tris-Glycine Buffer (9 to 170 kDa in Bis-Tris (MOPS) buffer and 10 to 170 kDa Bis-Tris (MES) buffer). Proteins are covalently coupled with different chromophores for easy identification of bands, with three reference proteins carrying enhanced intensity corresponding to a blue band at 20 kDa, green at 40 kDa, and red at 75 kDa, respectively, as separated on SDS-PAGE (Tris-Glycine buffer). The PM5000 ExcelBand™ 3-color Pre-Stained Protein Ladder Regular Range is designed for monitoring protein separation during SDS-polyacrylamide gel electrophoresis, verification of Western transfer efficiency on membranes (PVDF, nylon, or nitrocellulose) and for approximating the size of proteins.
Propargyl-PEG3-CH2CO2H
Propargyl-PEG3-CH2CO2H is an PEG linker with an alkyne and carboxylic acid set of functional groups. The alkyne group can participate in copper catalyzed azide-alkyne Click Chemistry to form a stable triazole linkage. The carboxylic acid can react with primary amines to form stable amide bonds; activator (e.g. EDC, or HATU) is needed.

Propargyl-PEG3-CH2CO2H is an PEG linker with an alkyne and carboxylic acid set of functional groups. The alkyne group can participate in copper catalyzed azide-alkyne Click Chemistry to form a stable triazole linkage. The carboxylic acid can react with primary amines to form stable amide bonds; activator (e.g. EDC, or HATU) is needed.
PCR PLATE SEALING FILM

Heat sealing film for 96- and 384-well PCR microplates.
About
We are thrilled to announce the latest addition to our consumables range at 3CR Bioscience: heat sealing film for 96- and 384-well PCR plates.
This rigorously tested, permanent seal film complements our rigid frame 384-well PCR plates perfectly. Its superior clarity allows for easy sample visualisation and monitoring, ensuring excellent data quality.
Crafted from high-quality materials, the seal offers excellent chemical resistance and plate compatibility. Designed with durability, the film provides a secure seal with precise fit and strong adhesion, safeguarding sample integrity throughout amplification, re-cycling, and reading.
Both seals and our 384-well plates are ideal for automated, high-throughput PCR environments, including robotic handling. The film remains stable during thermal cycling in PCR machines and hydro cyclers, offering performance and convenience across various PCR workflows.
With this new addition, we reaffirm our commitment to delivering reliable, high-performance, and affordable products that empower scientists worldwide.
Contact us today to include a free sample of plate and seal in your next shipment!
Heat sealing film for 96- and 384-well PCR microplates.
029080 Glycerin

Introduction
029080 Glycerin
Usage:Additive Reagent for Culture Media.
Specification:1ml*10vials
1ml*10vials
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Our Team
Our sales team is comprised of knowledgeable and experienced individuals in the field of science, who are committed to service, honesty, and responsibility. We strive to ensure that our customers receive unparalleled service that they won’t find anywhere else. We want our customers to feel confident that we will provide them with the very best service possible.

TANATHORN VITISANT
Sales manager
Phone : 081-875-1869
Email : [email protected]
Line id : @a3p-scientific

NUCHANAT JANPRAPAS
Area Sales Manager
Phone : 099-263-6624
Email : [email protected]
Line id : belongkong

NANTASAK SRISUWAN
Area Sales Manager
Phone : 094-562-5914
Email : [email protected]
Line id : north6906295
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