Introduction

Free-circulating nucleic acids, such as tumor-specific extracellular DNA fragments and mRNAs in the blood or fetal nucleic acids in maternal blood, are present in serum or plasmausually as short fragments, <1000bp(DNA). HiPure Circulating DNA Midi Kit enables efficient purification of these circulating nucleic acids from human plasma, serum, or urine. The extracted products can be used for clinical in vitro detection.

This kit is designed for laboratories preferring centrifugation over vacuum processing. It applies the same membrane chemistry used in the Magen column system while adapting to spin-based workflows.

This configuration ensures consistent circulating DNA purification within centrifuge-driven laboratory environments.

For vacuum-based workflows, refer to HiPure Circulating DNA Kit – IVD3182.

For scalable magnetic processing, see MagPure Circulating DNA Maxi Kit – IVD5435.

Details

Specifications

Features	Specifications
Main Functions	Isolation circulating DNA from 1-5ml plasma, serum, bodyfluids by spin
Applications	qPCR, liquid or solid chip analysis, hybridization and SNP detection, etc.
Purification method	Mini spin column
Purification technology	Silica technology
Process method	Manual (centrifugation)
Sample type	Serum, plasma and other cell-free fluid samples
Sample amount	1-5ml
Elution volume	≥50μl
Time per run	≤70 minutes
Liquid carrying volume per column	4ml
Binding yield of column	1mg

Principle

This product is based on silica gel purification. The sample is lysed and digested with lysate and protease, DNA is released into the lysate. Transfer to an adsorption plate and filter column. Nucleic acid is adsorbed on the membrane, while protein is not adsorbed and is removed with filtration. After washing proteins and other impurities, nucleic acid was finally eluted with low-salt buffer (10 Mm Tris,pH 8.0).

Advantages

High yield - most optimal process, free DNA (>50bp) can be obtained to the maximum extent
High concentration - low elution volume, ensuring high nucleic acid concentration
High purity - low alcohol binding method, completely removing inhibitor and protein pollution
High recovery - DNA can be recovered at thelevel of PG by silica gel column purification

For detailed engineering characteristics and validation data, refer to the core circulating DNA extraction system.

Kit Contents

Contents	D318203D
Purification Times	50 Preps
Buffer ACL	250 ml
Buffer ACB*	300 ml
Buffer DCW1*	22 ml
Buffer DCW2*	10 ml
Proteinase K	540 mg
Protease Dissolve Buffer	30 ml
Carrier RNA	110 μg
Nuclease Free Water	20 ml
HiPure CFDNA Mini Columns	50
2 ml Collection Tubes	100
Extender Tubes	50
Sealing O-Ringes	50
50ml Collection Tube	50
Support Tube	50

Storage and Stability

Proteinase K, Carrier RNA should be stored at 2-8°C upon arrival. However, short-term storage (up to 12weeks) at room temperature (15-25°C) does not affect their performance. The remaining kit components can be stored dry at room temperature (15-25°C) and are stable for at least 18 months under these conditions. The entire kit can bestored at 2-8°C, but in this case buffers should be redissolved before use. Make sure that all buffers are at room temperature when used.

Purchase Guide

Select the right purification kit to get impactful results：

Ⅰ. Purchase guide of Magen kits based on sample

Ⅱ. Cross purchase guide for Magen kits vs Other brands

For any customized product or OEM service, please contact us.

CAT NO	PRODUCT NAME	SIZE	PRICE
D318203D	HiPure Circulating DNA Midi Spin Kit D (Spin Protocol)	50 preps	$567.00

HiPure Circulating DNA Midi Spin Kit D (Spin Protocol)

Introduction

Details

Principle

Advantages

Purchase Guide

Articles

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