m-PEG24-DBCO

Overview

• Rapid and simple procedure to generate digested peptides
• Simultaneous digestion, purification and concentration at once
• Peptide generation is complete, with no generation of additional artifacts being detected in mass spectrometry
• Peptides are ready for applications such as mass spectrometry and SDS-PAGE
• Purification is based on spin column chromatography that uses Norgen’s resin separation matrix

This kit is highly efficient in the enzymatic digestion of simple and complex protein samples using trypsin and the subsequent purification of the resulting peptides using a convenient spin column format.  Trypsin is added to the protein sample and bound to the column.  Salts are washed away and the trypsin is then activated to digest proteins.  Peptides are then eluted in a small volume and ready for downstream analysis. The peptides generated are complete, with no additional artifacts being detected in mass spectrometry.  Fifteen micrograms of protein can be processed, digested and purified with each spin column with about 20 minutes of hands-on time (plus trypsin incubation).   The simultaneous protein digestion and volumetric concentration of the purified peptides makes the kit a convenient method for preparing peptides to be analyzed by many downstream applications such as mass spectrometry and more.

Details

Supporting Data

Figure 1 / 1

Previous

Next

Click for expanded view

Kit Specifications
Maximum Protein Input	15 μg
Minimum Protein Input	2 μg
Minimum Elution Volume	30 μL
Time to Process 10 Purifications	20 minutes (Plus a 1-hour incubation)

Storage Conditions
All solutions should be kept tightly sealed and stored at room temperature. Once opened, the solution should be stored at 4°C. This kit is stable for 2 years after the date of shipment.

Component	Cat. 17500 (25 preps)
Wash Solution C	30 mL
Binding Buffer A	4 mL
Column Activation Buffer	3 mL
Micro Spin Columns	25
Collection Tubes	25
Elution tubes (1.7 mL)	25
Product Insert	1

 K-LMALMQ

60 assays per kit

Content:	60 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:	L-Malic Acid
Assay Format:	Spectrophotometer
Detection Method:	Absorbance
Wavelength (nm):	505
Signal Response:	Increase
Linear Range:	0.15 to 15 µg of L-malic acid per assay (i.e. 0.007-0.75 g/L with a 20 µL sample volume)
Limit of Detection:	15.4 mg/L
Reaction Time (min):	~ 6 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:	Novel method

This product has been discontinued (read more).

The L-Malic Acid test kit is suitable for the measurement and analysis of L-malic acid in grapes, grape juice and wine using the MegaQuant™ colorimeter (measurement at 505 nm). Suitable for white and red wines at all stages of the winemaking process.

Show all organic acid assay kits.

Advantages

• Novel product, patented technology 
• Highly stable reagents (at least three seasons use) 
• Very competitive price (cost per test) 
• Spectrophotometer / laboratory / expertise not required 
• Very simple procedure 
• Rapid reaction time (~ 6 min) 
• Standard included

The L-Malic Acid test kit is suitable for the measurement and analysis of L-malic acid in grapes, grape juice and wine using the MegaQuant™ colorimeter (measurement at 505 nm). Suitable for white and red wines at all stages of the winemaking process.