DBCO-PEG6-amine TFA salt

t-Boc-aminooxy-PEG1-propargyl is a click chemistry PEG linker with a t-Boc-aminooxy group. The propargyl group can react with azide-bearing compounds or biomolecules via copper catalyzed azide-alkyne Click Chemistry to yield a stable triazole linkage. The t-Boc aminooxy group can be deprotected under mild acidic conditions and then can react with an aldehyde or ketone group to form a stable oxime linkage. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

t-Boc-aminooxy-PEG1-propargyl is a click chemistry PEG linker with a t-Boc-aminooxy group. The propargyl group can react with azide-bearing compounds or biomolecules via copper catalyzed azide-alkyne Click Chemistry to yield a stable triazole linkage. The t-Boc aminooxy group can be deprotected under mild acidic conditions and then can react with an aldehyde or ketone group to form a stable oxime linkage. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

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

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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

 

K-LMAL-116A

SKU: 700004311

Content:	(K-LMAL-58A) 58 assays (manual) / 580 assays (microplate) (K-LMAL-116A) 116 assays (manual) / 1160 assays (microplate)
Shipping Temperature:	Ambient
Storage Temperature:	Short term stability: 2-8oC, Long term stability: See individual component labels
Stability:	> 2 years under recommended storage conditions

Analyte:	L-Malic Acid
Assay Format:	Spectrophotometer, Microplate
Detection Method:	Absorbance
Wavelength (nm):	340
Signal Response:	Increase
Linear Range:	0.5 to 30 µg of L-malic acid per assay
Limit of Detection:	0.25 mg/L
Reaction Time (min):	~ 3 min
Application examples:	Wine, beer, fruit juices, soft drinks, candies, fruit and vegetables, bread, cosmetics, pharmaceuticals and other materials (e.g. biological cultures, samples, etc.).
Method recognition:	Methods based on this principle have been accepted by AOAC, EEC, EN, NF, NEN, DIN, GOST, OIV, IFU, AIJN, NBN, ISO and MEBAK

The K-LMAL-58A pack size has been discontinued (read more)

L-Malic Acid (Regular) Assay Kit, for the specific assay of L-malic acid (L-malate) in beverages and food products.

Note for Content: The number of manual tests per kit can be doubled if all volumes are halved.  This can be readily accommodated using the MegaQuant^TM  Wave Spectrophotometer (D-MQWAVE).

Need other assay kits? View our full list of organic acid assay kits.

Advantages

• PVP incorporated to prevent tannin inhibition 
• Both enzymes supplied as stable suspensions 
• Very competitive price (cost per test) 
• All reagents stable for > 2 years after preparation 
• Very rapid reaction (~ 3 min) 
• Mega-Calc™ software tool is available from our website for hassle-free raw data processing 
• Standard included 
• Extended cofactors stability 
• Suitable for manual and microplate format