Lnjnbio Magnetic Beads for Blood Genomic DNA Extraction Kit (Magnetic Bead Method)231010

【Product Introduction】

This product is designed for the extraction, enrichment, and purification of genomic nucleic acids from fresh, frozen, or blood samples containing anticoagulants. Under the influence of guanidine salts, cellular lysis occurs, releasing the nucleic acids. Through specific adsorption by magnetic beads, the nucleic acids are separated from other contaminants in the sample. They are then washed with a buffer solution to eliminate proteins and residual guanidine salts. Ultimately, purified nucleic acids are retrieved via elution and magnetic adsorption. The resulting product is suitable for applications such as PCR amplification, nucleic acid detection assays, gene mutation analysis, and sequencing experiments.

【Product advantages】

1. It enables efficient lysis and binding in one step even for challenging samples like whole blood, eliminating the need for intermediate pauses to add additional reagents.

2. The extraction process does not require the addition of Proteinase K, allowing for ambient transportation and storage conditions.

3. The extracted genomic DNA exhibits high purity, yields, and intact electrophoresis bands.

4. It boasts high extraction efficiency, completing the entire process in approximately 20 minutes, ideally suited for the extraction of 200-400 μL whole blood samples.

5. It offers strong versatility, being compatible with automated nucleic acid extraction systems from various manufacturers.

【Product image】

【Experimental cases】

Case 1：Experimental results of extracting fresh blood samples from different healthy individuals using the same batch of reagents：

Sample number	Sample volume（μL）	A260/A280	A260/A230	Conc.(ng/μL)	Elution volume（μL）	Nucleic acid yield（μg）
Sample 1	200	1.950	1.493	59.10	80	4.728
Sample 2		1.964	1.523	60.65		4.852
Sample 3		1.928	1.469	74.30		5.944
Sample 4		1.967	1.481	62.75		5.020
Sample 5		1.982	1.797	81.30		6.504
Sample 6		2.006	1.890	78.75		6.300
Sample 7		1.932	1.524	66.10		5.288
Sample 8		1.945	1.540	72.90		5.832
Sample 9		1.956	1.728	99.90		7.992
Sample 10		1.991	1.832	88.80		7.104
Sample 11		1.943	1.485	78.10		6.248
Sample 12		1.975	1.473	38.15		3.052
Sample 13		1.917	1.459	105.80		8.464
Sample 14		1.988	1.657	58.05		4.644
平均		1.963	1.578	70.37		5.630
Remarks：Experimental date 7/14/2023

Genomic DNA was extracted from fresh blood samples of healthy individuals using a Blood Genomic DNA Extraction Reagent kit on the automated nucleic acid extraction and purification instrument, LJbio32H. The electrophoresis results are shown in the following figure.

Sample volume：200 μL, Elution volume ：80 μL, electrophoresis loading volume:6 μL，Agarose gel concentration is 1%,120 V,time:30 mins.

Result analysis：

From the extracted product detection data and agarose electrophoresis results, it can be seen that：

1. The extraction time is about 20 minutes, and all 14 samples can stably extract human whole blood genomic DNA;

2. The purity of the extracted products is good: the 260/280 ratios for all extraction products are above 1.9, and the 260/230 ratios are above 1.4.

3. High yield of extraction products: Yields from all 200 μL samples are consistently above 3 μg, sufficient to meet the requirements of downstream applications.

4. The electrophoretic bands are complete and without degradable and diffuse.

Comparison Content	Shanghai Lingjun	other manufacturer
Sample volume	200-400 μL	100-250 μL
PK	No need	Need
Lysis time	8 min	15 min+10 min
Lysis temperature	65℃ or room temperature	75℃
Lysis and binding	Only one step	Comprises two steps
Washing process	Three times, 3 min each time	Four times, 3 min each time
Elution time	65℃，5 min	75℃，10 min
Drying time	1 min	5 min
Extraction purity	OD260/280 1.7-2.0	OD260/280 1.7-1.9
	OD260/230＞1.4	/
Extraction yield	200 μL sample can extract genomic DNA＞3 μg	250 μL sample can extract genomic DNA＞2 μg
Extraction time	About 20 min	More than one hour

 Case 2：Comparison with reagent kits from other manufacturer：

Case 3: The results of extracting 32 samples of pig whole blood using a fully automatic nucleic acid extraction and purification instrument are as follows：

Sample number	Sample volume（µL）	A260/A280	A260/A230	Conc.（ng/µL）	Extraction yield（µg）
1	200	1.915	1.959	94.25	9.425
2		1.906	1.978	94.3	9.43
3		1.919	2.013	99.7	9.97
4		1.919	1.983	89.4	8.94
5		1.915	2.04	85.1	8.51
6		1.92	1.952	87.55	8.755
7		1.918	1.946	94.9	9.49
8		1.906	1.9	94.6	9.46
9		1.923	2.014	87.3	8.73
10		1.915	1.924	82.5	8.25
11		1.922	1.997	85	8.5
12		1.919	2.029	90.5	9.05
13		1.941	2.005	87.6	8.76
14		1.926	1.963	92.95	9.295
15		1.934	1.98	95.15	9.515
16		1.928	1.97	102	10.2
17		1.908	1.914	91.2	9.12
18		1.909	1.907	95.6	9.56
19		1.933	1.989	100.8	10.08
20		1.931	1.902	99.15	9.915
21		1.922	1.945	97.6	9.76
22		1.915	1.984	99.7	9.97
23		1.919	1.921	83.95	8.395
24		1.937	2.005	106.05	10.605
25		1.933	1.961	101.4	10.14
26		1.927	1.958	98.85	9.885
27		1.925	1.906	89.7	8.97
28		1.932	1.892	86.55	8.655
29		1.931	1.963	94.35	9.435
30		1.94	1.961	99.55	9.955
31		1.944	2	96.6	9.66
32		1.933	1.987	88.8	8.88
Average value		1.924	1.964	93.520	9.352
Standard deviation		0.010	0.039	5.963	0.596
Coefficient of variation		0.5%	2%	6.4%	6.4%

Result analysis：The test results of the micro nucleic acid analyzer indicate that：

1. The coefficient of variation of A260/A280 and A260/A230 below 2%.The test results demonstrate high stability of the reagent in extracting nucleic acids.。
2. The 260/280 ratios for all extraction products between 1.906 and 1.944，the 260/280 ratios for all extraction products between 1.892 and 2.04.The intact and nearly coinciding peak profiles attest to the high purity of the extracted product.。
3. The extraction amount of nucleic acid from 200 µL pig whole blood can reach over 8.25 µ g.

The results of agarose gel electrophoresis showed that:

Seven samples were randomly selected, all exhibiting bright bands with good integrity.

In summary, 32 samples of whole blood were extracted using a fully automatic nucleic acid extraction and purification instrument. The extracted products had high purity, high yield, complete electrophoresis bands, and uniform and stable combination of reagents and instruments.

【Application area】

The nucleic acids purified by this extraction reagent are suitable for various routine experiments including enzymatic digestion, PCR, library construction, Southern blotting, as well as applications in microarray hybridization and high-throughput sequencing.

Supplier Introduction

Shanghai Lingjun Biotechnology Co., Ltd. was established in 2016 and is a professional manufacturer of biomagnetic materials and nucleic acid extraction reagents.

We have rich experience in nucleic acid extraction and purification, protein purification, cell separation, chemiluminescence and other technical fields.

Our products are widely used in many fields, such as medical testing, genetic testing, university research, genetic breeding, and so on. We not only provide products but can also undertake OEM, ODM, and other needs. If you have related needs, please feel free to contact us at sales01@lingjunbio.com.