2-(Propargyl-PEG4-amido)-1,3bis(PEG1-methyl ester) is a crosslinker that can react with azide compounds or biomolecules via copper catalyzed Click Chemistry to form a stable triazole linkage. The methyl ester groups can be hydrolyzed, reduced, or substituted under different conditions.
Detail
2-(Propargyl-PEG4-amido)-1,3bis(PEG1-methyl ester) is a crosslinker that can react with azide compounds or biomolecules via copper catalyzed Click Chemistry to form a stable triazole linkage. The methyl ester groups can be hydrolyzed, reduced, or substituted under different conditions.
Other Products
Acetic Acid Assay Kit (ACS Analyser Format)
Product Info
Document
Product Info
K-ACETAF
SKU: 700004255
141.6 mL of prepared reagent (e.g. 456 assays of 0.31 mL)
Content:
141.6 mL of prepared reagent (e.g. 456 assays of 0.31 mL)
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:
Acetic Acid
Assay Format:
Auto-analyser
Detection Method:
Absorbance
Wavelength (nm):
340
Signal Response:
Increase
Linear Range:
up to 30 μg/mL of acetic acid per assay
Limit of Detection:
10 mg/L (recommended assay format)
Reaction Time (min):
~ 15 min
Application examples:
Wine, beer, fruit and fruit juices, soft drinks, vinegar, vegetables, pickles, dairy products (e.g. cheese), meat, fish, bread, bakery products (and baking agents), ketchup, soy sauce, mayonnaise, dressings, paper (and cardboard), tea, pharmaceuticals (e.g. infusion solutions), feed and other materials (e.g. biological cultures, samples, etc.).
Method recognition:
Methods based on this principle have been accepted by EN, ISO, ICUMSA, IFU and MEBAK
The Acetic Acid analyser format test kit is suitable for the specific measurement and analysis of acetic acid (acetate) in beverages and food products.
See more of our acetic acid and organic acid test kits.
Advantages
No wasted ACS solution (stable suspension supplied)
PVP incorporated to prevent tannin inhibition
Very stable reagent when prepared for auto-analyser applications (> 3 days at 4oC)
Linear calibration up to 30 μg/mL of acetic acid in final reaction solution
Validated by the University of Wine, Suze la Rousse, France
Very competitive price (cost per mL of reagent)
All reagents stable for > 2 years after preparation
Document
The Acetic Acid analyser format test kit is suitable for the specific measurement and analysis of acetic acid (acetate) in beverages and food products.
Propargyl-PEG10-alcohol is a heterobifunctional PEG linker which enables Click Chemistry reactions with azide-bearing biomolecules; copper catalyst is needed. The hydrophilic PEG units increase aqueous solubility. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Document
Propargyl-PEG10-alcohol is a heterobifunctional PEG linker which enables Click Chemistry reactions with azide-bearing biomolecules; copper catalyst is needed. The hydrophilic PEG units increase aqueous solubility. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Magnetic bead nucleic acid purification technology uses nano or micron superparamagnetic material as the matrix, generally black ferric oxide or yellowish brown ferricoxide as the magnetic material. The surface of bead is coated with appropriate functional groups, which can adsorb nucleic acid. Magnetic beads commonly used for nucleic acids, containing carboxyl groups, hydroxyl groups, or silicon groups. Silicon-based magnetic beads are the most common, and its principle of adsorbing nucleic acid is consistent with the classical glass milk purification technology or glass fiber filter membrane purification method. Magpure particle is a kind of polydisperse fast speed silica magnetic beads. The core is ferricoxide, accounting for 50%, and the surface coating is silica, accounting for 50%. The product can be used for plasmid extraction, gel DNA recovery, product purification, genomic DNA and RNA extraction, and viral nucleic acid extraction.
Details
Specifications
Features
Specifications
Concentration
40 mg/ml
Appearance
Suspension of dark brown particles
Surface functional group
Si-OH, Silanol
Dispersibility
Monodisperse,spherical
Particle size
1.0-1.5 μm
Preservation conditions
Room Temperature, valid for up to 2 years.It is recommended to store in 2-8°C to prevent microbial growth.
Magnetic response speed
~30 seconds
Settling velocity
>3 minutes
High salt mediated binding
>2M guanidine isothiocyanate, DNA recovery up to 80%
Alcohol mediated binding
2M guanidine hydrochloride / isopropanol (30%), and the recovery of DNA / RNA was as high as 85%
PEG8000 mediated binding
The recovery of DNA/RNA was up to 85%
DNase/RNase
Not detected
DNA residue
Not detected
Recommended application
Genomic DNA extraction, RNA extraction, viral nucleic acid extraction, circulating DNA isolation
Principle
Highsalt mediated binding: in the solution containing 2-4M guanidine isothiocyanate, Magpure particles can selectively recover DNA molecules, and impurities such as protein polysaccharides are not adsorbed.
Alcohol mediated binding: in the solution containing guanidine salt and alcohol (>25%), Magpure particles can selectively recover DNA/RNA molecules, and proteins and other impurities are not adsorbed.
After biological samples are treated with digestive solution or lysis Buffer, DNA/RNA is released from cells, organelles and protein complexes (ribosomes and nucleosomes) into reagents. After Magpure particles and binding solution are added, DNA/RNA is adsorbed to the surface of Magpure particles to form DNA/RNA bead complex. Under the action of the magnetic field, the magnetic beads are separated and collected, and the impurities such as protein are removed with the waste liquid. After two or three steps of further cleaning, the DNA/RNA magnetic bead complex is resuspended in sterilized water or TE buffer, and the DNA/RNA falls off from the surface of the magnetic beads, so as to achieve the purpose of purification.
gDNA/RNA Isolation from Blood, Tissue, Plant, Swab, Spots, Stool, Soil and etc.Viral DNA/RNA IsolationAgarose Gel DNA Purification
DNA/RNA Isolation from low nucleic acid content samplesPlasmid IsolationDNA/RNA Clean Up
Circulating DNA IsolationViral Nucleic acid IsolationgDNA Isolation FFPE DNA/RNA Isolation
Plasmid extractiongel DNA recoverygenomicDNA/RNA extraction viral nucleic acid extractionCirculating DNA extraction
DNA/RNA Clean Up and concentrationDNA/RNA Isolation from low nucleic acid content samplesResearch immuno assays
The MagPure magnetic-particle technology combines the speed and efficiency of silica-based DNA purification with the convenient handling of magnetic particles. DNA binds to the silica surface of the magnetic particles in the presence of a chaotropic salt. DNA bound to the particles is then efficiently washed, considerably improving the purity of DNA. High-quality DNA is eluted. The automated purification procedure completely removes enzymes, nucleotides, and other contaminants and inhibitors. Purified DNA is suitable for direct use in downstream applications, such as sequencing and microarray analysis.
Document
Magnetic bead nucleic acid purification technology uses nano or micron superparamagnetic material as the matrix, generally black ferric oxide or yellowish brown ferricoxide as the magnetic material. The surface of bead is coated with appropriate functional groups, which can adsorb nucleic acid. Magnetic beads commonly used for nucleic acids, containing carboxyl groups, hydroxyl groups, or silicon groups. Silicon-based magnetic beads are the most common, and its principle of adsorbing nucleic acid is consistent with the classical glass milk purification technology or glass fiber filter membrane purification method. Magpure particle is a kind of polydisperse fast speed silica magnetic beads. The core is ferricoxide, accounting for 50%, and the surface coating is silica, accounting for 50%. The product can be used for plasmid extraction, gel DNA recovery, product purification, genomic DNA and RNA extraction, and viral nucleic acid extraction.