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DBCO-PEG4-Maleimide

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DBCO-PEG4-Maleimide is PEG linker containing a maleimide group and a DBCO moiety. The hydrophilic PEG spacer arm improves solubility in aqueous buffers. Maleimide group specifically and efficiently reacts with thiols to form stable thioether bonds. The low mass weight will add minimal spacer to modified molecules and will enable simple and efficient incorporation of DBCO moiety onto cysteine-containing peptides or other thiol-containing biomolecules. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Detail

Other Products

IVD3126 HiPure FFPE DNA Kit

Introduction

HiPure FFPE Nucleic acid Kit supplies a simple and rapid DNA extraction for Formalin-fixed, paraffin-embedded (FFPE) tissue and sections samples. This kit is based on silica gel column purification technology, no phenol-chloroform extraction or alcohol precipitation. The whole extraction only takes 20 minutes (not including digestion time). DNA can be directly used for downstream applications such as PCR, southern blot and viral DNA detection, etc.

Details

Specifications

FeaturesSpecifications
Main FunctionsIsolation total DNA from FFPE tissue samples
ApplicationsPCR, Southern Blot and viral DNA detection, etc.
Purification methodMini spin column
Purification technologySilica technology
Process methodManual (centrifugation or vacuum)
Sample typeFormalin-fixed, paraffin-embedded (FFPE) tissue and sections samples
Sample amount<20mg
Elution volume>15µl
Time per run≤20 minutes
Liquid carrying volume per column4ml
Binding yield of column100μg

Principle

Hipure FFPE Nuclear acid kit adopts silica gel column purification. The sample is deparaffinated by xylene and digested by lysate and protease. After decrosslinked at 90 ℃, DNA/RNA is released into the lysate. Adding ethanol to adjust the binding conditions, the sample is transferred to the column where DNA/RNA is adsorbed on the membrane and protein is removed without adsorption. Protein and other impurities are washed by buffer GW1, and the salt is removed by buffer GW2. Finally, the DNA / RNA is eluted by low salt buffer.

Advantages

  • Safety – deparaffinating without contacting with xylene or other toxic solution
  • Fast – without overnight incubation and digestion, several samples can be extracted within 2hours
  • High efficiency – remove the formaldehyde modification of DNA, greatly enhancing the sensitivity of PCR
  • High yield – most optimal process to ensure the highest recovery
  • High recovery – silica gel column purification method can recover nucleic acid at the level of PG

Kit Contents

ContentsIVD3126
Purification Times100 Preps
HiPure DNA Mini Columns I100
2ml Collection Tubes100
Buffer DPS70 ml
Buffer ATL30 ml
Buffer AL30 ml
Buffer GW1*44 ml
Buffer GW2*20 ml
Proteinase K50 mg
Protease Dissolve Buffer6 ml
Buffer AE20 ml

Storage and Stability

Proteinase K should be stored at 2-8°C upon arrival. However, short-term storage (up to 12 weeks) at room temperature (15-25°C) does not affect their performance. The remaining kit components can be stored at room temperature (15-25°C) and are stable for at least 18 months under these conditions. The entire kit can be stored 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.

Experiment Data

N-(Amino-PEG1)-N-bis(PEG2-propargyl) HCl salt

N-(Amino-PEG1)-N-bis(PEG2-propargyl) HCl salt is a crosslinker consisting of an amino group with two propargyl groups. The amino group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The propargyl groups can form triazole linkage with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.

Lactose/Galactose Assay Kit (Rapid)

K-LACGAR

SKU: 700004307

115 assays per kit

Content:115 assays per kit
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:D-Galactose, Lactose
Assay Format:Spectrophotometer
Detection Method:Absorbance
Wavelength (nm):340
Signal Response:Increase
Linear Range:4 to 80 µg of D-galactose (or 8 to 160 µg of lactose) per assay
Limit of Detection:2.96 mg/L
Reaction Time (min):~ 15 min
Application examples:Milk, dairy products (e.g. cream, milk / whey powder, cheese, condensed milk and yogurt), foods containing milk (e.g. dietetic foods, bakery products, baby food, chocolate, sweets and ice-cream), food additives, feed, cosmetics, pharmaceuticals and other materials (e.g. biological cultures, samples, etc.).
Method recognition:Methods based on this principle have been accepted by AOAC Method 2006.06, NBN, DIN, GOST and IDF

The Lactose/Galactose (Rapid) test kit is used for the rapid test of lactose, D-galactose and L-arabinose in food and plant products. Galactose dehydrogenase can be used the measurement and analysis of both D-galactose and L-arabinose. Suitable for the analysis of lactose in “low-lactose” or “lactose-free” samples which contain high levels of monosaccharides. The reagents provided in this kit are also suitable for use with AOAC method 2006.06 – Lactose in milk.

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 MegaQuantTM  Wave Spectrophotometer (D-MQWAVE).

View our full range of mono/disaccharide test kits.

Scheme-K-LACGAR LACGAR Megazyme

Advantages

  • Very rapid reaction due to inclusion of galactose mutarotase (patented technology PCT / IE2004 / 00170) 
  • Very competitive price (cost per test) 
  • All reagents stable for > 2 years after preparation 
  • Mega-Calc™ software tool is available from our website for hassle-free raw data processing 
  • Standard included