N-(Boc-PEG4)-N-bis(PEG4-propargyl) is a trifunctional chemical containing two terminal alkynes and a Boc-protected primary amine. The terminal alkynes are used in copper click chemistry with azides to form stable triazole linkages with the target molecule while the carboxylic acids are reactive towards alcohols and primary amines to form esters and amides respectively.
N-(Boc-PEG4)-N-bis(PEG4-propargyl) is a trifunctional chemical containing two terminal alkynes and a Boc-protected primary amine. The terminal alkynes are used in copper click chemistry with azides to form stable triazole linkages with the target molecule while the carboxylic acids are reactive towards alcohols and primary amines to form esters and amides respectively.
K-SORB
SKU: 700004339
58 assays (manual) / 580 assays (microplate) / 700 assays (auto-analyser)
| Content: | 58 assays (manual) / 580 assays (microplate) / 700 assays (auto-analyser) |
| 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-Sorbitol, D-Xylitol |
| Assay Format: | Spectrophotometer, Microplate, Auto-analyser |
| Detection Method: | Absorbance |
| Wavelength (nm): | 492 |
| Signal Response: | Increase |
| Linear Range: | 1.0 to 20 µg of D-sorbitol (or xylitol) per assay |
| Limit of Detection: | 0.20 mg/L |
| Reaction Time (min): | ~ 15 min |
| Application examples: | Diabetic foods (e.g. honey, jam and chocolate), dietetic foods, chewing gum, candies, fruit juice (e.g. apple juice), ice-cream, sweets, bakery products (e.g. desserts), marzipan, paper (and cardboard), cosmetics, pharmaceuticals and other materials (e.g. biological cultures, samples, etc.). |
| Method recognition: | Methods based on this principle have been accepted by IFU and AIJN |
The D-Sorbitol/Xylitol test kit for the determination Of D-Sorbitol And Xylitol In Foodstuffs, such as bakery goods, diabetic foods, chocolate, fruit, sweets and more.
Sorbitol is non-cariogenic and finds many dietetic applications, but can cause gastrointestinal problems in adults if large quantities are consumed (10-50 g per day). It has been safely used in processed foods for almost half a century and finds applications in the cosmetics and pharmaceuticals industries.
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 range of alcohol test kits.
Advantages
The D-Sorbitol/Xylitol test kit for the determination Of D-Sorbitol And Xylitol In Foodstuffs, such as bakery goods, diabetic foods, chocolate, fruit, sweets and more.
Permagen’s 50 mL Centrifuge Tube Magnetic rack is designed for magnetic bead separations from up to six, 50 mL Centrifuge tubes
Accommodates any common 50 mL Centrifuge Tubes
Beads will be pulled to back wall allowing easy aspiration and tip tracking down the front wall of the tubes without disturbing bead pellet
Features include solid aluminum alloy design with hard coat finish for years of trouble-free use, rubber feet to help prevent slipping on work bench, less tippy than common plastic products, and fast separations using any magnetic beads
MSR6X50
Maximum Volume – 50 mL
Minimum Volume – 10 mL
Permagen’s 50 mL Centrifuge Tube Magnetic rack is designed for magnetic bead separations from up to six, 50 mL Centrifuge tubes
The PCR Decontamination Kit can remove contaminating DNA in PCR master mixes, without reduction of PCR sensitivity.
Decontamination of master mixes without reduction of sensitivity has always been a challenge. Especially when minor amounts of DNA are targeted, contaminating DNA is a major problem. Any loss of sensitivity in the qPCR assay caused by the decontamination protocol is unacceptable.
In Figure 1, it is demonstrated that the PCR decontamination kit can remove contaminating DNA from a qPCR mix to non-detectable levels (flat NTC), without affecting the sensitivity of the qPCR.
The PCR Decontamination Kit can remove contaminating DNA in PCR master mixes, without reduction of PCR sensitivity.
