DBCO-PEG8-NHS Ester is a click chemistry molecule cosisting of an NHS ester that is reactive specifically and efficiently with primary amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic condition to form a covalent bond. PEG8 spacer arm improves water solubility and provides a long and flexible connection that minimizes steric hindrance involved with ligation. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
DBCO-PEG8-NHS Ester is a click chemistry molecule cosisting of an NHS ester that is reactive specifically and efficiently with primary amines (e.g. the side chain of lysine residues or aminosilane-coated surfaces) at neutral or slightly basic condition to form a covalent bond. PEG8 spacer arm improves water solubility and provides a long and flexible connection that minimizes steric hindrance involved with ligation. DBCO is commonly used for copper-free Click Chemistry reactions. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
K-GLNAM
SKU: 700004295
50 assays of each (manual) / 500 assays of each (microplate)
| Content: | 50 assays of each (manual) / 500 assays of each (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: | Ammonia, L-Glutamine |
| Assay Format: | Spectrophotometer, Microplate |
| Detection Method: | Absorbance |
| Wavelength (nm): | 340 |
| Signal Response: | Decrease |
| Linear Range: | 1 to 40 µg of L-glutamine per assay |
| Limit of Detection: | 0.54 mg/L (L-glutamine), 0.06 mg/L (ammonia) |
| Reaction Time (min): | ~ 10 min |
| Application examples: | Cell culture media and cultures, dietary supplements, vegetables and other materials (e.g. biological samples, etc.). |
| Method recognition: | Novel method |
This product has been discontinued.
The L-Glutamine/Ammonia (Rapid) test kit is a novel method for the specific, convenient, cost effective and rapid measurement and analysis of L-glutamine and ammonia in culture media/supernatants and other materials.
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).
See our full list of assay kits.
Advantages
The L-Glutamine/Ammonia (Rapid) test kit is a novel method for the specific, convenient, cost effective and rapid measurement and analysis of L-glutamine and ammonia in culture media/supernatants and other materials.
Norgen’s EXTRAClean Cell Culture Media Exosome Purification and RNA Isolation Kits constitute all-in-one systems for the purification of exosomes and the subsequent isolation of RNA from different cell culture media sample volumes. The purification is based on spin column chromatography that employs Norgen’s proprietary resin. The EXTRAClean columns undergo stringent processing and rigorous quality control measures to minimize contamination traces, ensuring optimal results for sensitive applications such as NGS. The kit is designed to isolate all sizes of RNA, including microRNA. The kit provides a clear advantage over other available kits in that it does not require any special instrumentation, protein precipitation reagents, extension tubes, phenol/chloroform or protease treatments. Moreover, the kits allows the user to elute into flexible elution volumes ranging from 50 μL to 100 μL. The purified RNA is free from any protein-bound circulating RNA and is of the highest integrity. The purified RNA can be used in a number of downstream applications including real time PCR, Sequencing based applications, reverse transcription PCR, Northern blotting, RNase protection and primer extension, and expression array assays.
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| Sample Type | Cell-Free Cell Culture Media |
| Sample Volume Range | 20 ml to 35 mL |
| Size of RNA Purified | All sizes, including miRNA and small RNA (< 200 nt) |
| Elution Volume | 50-100 μL |
| Time to Complete 10 Purifications | 40-45 minutes |
| Average Yields | Variable depending on specimen |
Storage Conditions and Product Stability
All buffers should be kept tightly sealed and stored at room temperature. This kit is stable for 2 years after the date of shipment. It is recommended to warm Lysis Buffer A for 20 minutes at 60°C if any salt precipitation is observed.