Propargyl-PEG12-amine is a heterobifunctional reagent that enables amide formation with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The propargyl group is reactive with azide compounds via copper catalyzed azide-alkyne Click Chemistry to yield a stable triazole linkage. The PEG units enhance the hydrophilicity of the molecule in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Propargyl-PEG12-amine is a heterobifunctional reagent that enables amide formation with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The propargyl group is reactive with azide compounds via copper catalyzed azide-alkyne Click Chemistry to yield a stable triazole linkage. The PEG units enhance the hydrophilicity of the molecule in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
Norgen’s Stool Nucleic Acid Collection and Preservation Devices Dx are designed for the collection and preservation of nucleic acids from fresh stool specimens. The Stool Nucleic Acid Collection and Preservation Devices Dx – 50 contains 50 individual Stool Nucleic Acid Collection and Preservation Devices Dx. Each Stool Nucleic Acid Collection and Preservation Device Dx consists of Norgen’s Stool Nucleic Acid Collection and Preservation Tube Dx containing Norgen’s Stool Preservative in a liquid format. The user simply collects stool into the tubes (fill up to the line indicated on the tube) and mixes gently until the stool is well submerged under the preservative. The Stool Nucleic Acid Collection and Preservation Tube Dx is subsequently sent to the laboratory for DNA and/or RNA isolation and analysis. The stool DNA in preserved samples is stable for more than 2 years at room temperature, and the stool RNA in preserved samples is stable for 7 days at room temperature. DNA can be isolated from the preserved stool samples using Norgen’s Stool DNA Isolation Kit Dx (Cat. Dx27600) and RNA can be isolated from the preserved stool samples using Norgen’s Stool Total RNA Purification Kit Dx (Cat. Dx49500). These tubes are ideal for collecting and preserving DNA and RNA samples for in vitro diagnostic use for medical purposes.
NOTE: This product is not available for sale in the United States.
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| Kit Specifications | |
| Stool Input | 2 g |
| Stability of Stool Nucleic Acids at Room Temperature | 2 years for DNA 7 days for RNA* |
* The RNA stability will be vary depending on the samples
Stool Nucleic Acid Collection and Preservation Devices Dx – 50 Contents:
| Kit Components | Cat. Dx45660 |
|---|---|
| Stool Nucleic Acid Collection and Preservation Devices Dx | 50 |
| Product Insert | 1 |
Stool Nucleic Acid Collection and Preservation Device Dx Contents:
| Kit Components | Contents |
|---|---|
| Stool Nucleic Acid Collection and Preservation Tube Dx filled with preservative | 1 |
| Insert Card | 1 |
* Optical system: equipped with infinite flat field optical system, the whole machine mildew prevention design and large field eyepiece, with beautiful appearance, clear imaging, broad vision, convenient operation and other characteristics, can be widely used in biology, medicine, industry, agriculture and other fields, is the ideal instrument for medical, teaching, scientific research and other units
* Observation head device: the cylinder can rotate 360 degrees, the displacement of the center of the mirror is 0.06mm; 30 tilt; the hinge type binocular observation (the magnification difference between left and right systems is 2.0%; the end position difference is 0.1mm at zero vision) and the third party connection port, the pupil distance adjustment range is 50-75mm, the fixed observation cylinder head is internal hexagon screw or select portable screw.
* Eyepiece configuration: random eyepiece WF10X / 22mm; the magnification accuracy of eyepiece shall not exceed ± 2%. There is a card slot on the eyepiece tube to lock the eyepiece to prevent falling. Binocular vision is adjustable, making binocular observation easier;
* Objective: Broadband coated ED-N195 pure copper infinite remote flat field achromatic objective; objective magnification accuracy not exceeding ± 5%; 4X, 10X, 40X (spring), 100X (spring, oil); objective error 10-40 Aim 0.06mm; 40-100 Aim 0.03mm
* Loading platform: triangular rail XY composite mechanical moving loading platform; 0.005 lateral to 5N horizontal force, corrosion resistance and wear resistance. Rectangular, size 190X140mm, stroke 6090mm, minimum read value 0.1 mm.
Parameter of microscope
| Specification configuration | TL36A | Binocular observation head, 45° tilt, 360 degrees can be rotated, pupil distance can be adjusted, adjustment range 50-75mm |
| TL36B | Three-eye observation head, 45° tilt, 360 degrees can be rotated, pupil distance can be adjusted, adjustment range 50-75mm. | |
| TL36M | Three-eye viewing head with 6.3 megapixel imaging system CMOS camera | |
| TL36P | Three-eye viewing head, equipped with 10.1 inch integrated flat panel display | |
| Eyepiece | Wide-angle eyepiece WF10X,field of view 22mm,optional WF16X,WF25X | |
| Converter | Quadruple Revolving converter | |
| 0bjective | Flat field achromatic objective at infinite distance,4X,10X,40X,100X(oil) | |
| Condenser | ABBE N.A.1.25Condenser with Iris Diaphragm &Filter | |
| Stage | Double Layer Mechanical Stage, Size1190X140mm, Moving Range : 60mmx90mm | |
| Focusing | 0.02mmCrude motion, micromotion and coaxial focal adjustment system with a minimum focal range of 0.02mm Coarse and Fine Focusing | |
| Light source | 3W LED,with Rechargeable Battery,Type C USB cable | |
| Attachments | Dust bag,Type C power cord | |
TL 36 series biological microscopes are equipped with infinite distance flat field achromatic objective and large field eyepiece, with the characteristics of beautiful appearance, clear imaging, broad vision, convenient operation and so on, can be widely used in biology, medicine, industry, agriculture and other fields, is the ideal instrument for medical, teaching, scientific research and other units