

Specification
| 6.5-65 x continuous zoom stereo microscope | XTL-6565A | XTL-6565B | XTL-6565D | XTL-6565C | |
| Zoom Body | Binocular head,45°decline,360°rotate | ● | ● | ||
| Zoom Body | Trinocular head,45°decline,360°rotate | ● | ● | ||
| Eyepiece | WF10X22mm | ● | ● | ● | ● |
| Objective | zoom objective 0.65X—6.5X | ● | ● | ● | ● |
| Zoom Rate | 1:10 | ● | ● | ● | ● |
| Total Amplific- ation Rate | the standard configuration is 6.5X-65X | ● | ● | ● | ● |
| Auxiliary Lens | 0.3X,0.5X,0.7X,1X,1.5X,2X For Option | O | O | O | O |
| WorkingDistance | 110mm | ● | ● | ● | ● |
| Djopte | 55mm-75mm | ● | ● | ● | ● |
| Focus arm | 76mm Diameter,32mm pole size | ● | ● | ● | ● |
| plate | Black/White plate,Glass plate for option | ● | ● | ● | ● |
| Dptiona | Stand | O | O | ||
| Stand | BL3 base,column support upper and lower light source 3 WLED | ● | ● | ||
| Stand | 811 base column support large flat base has no light source | ● | ● | ||
| External light source | LED illumination | ○ | O | O | O |
| Optional | Photography,camera accessories CCD Coupler | 〇 | Q | Q | o |
| Optiona | Display attachment Monitor | O | O | O | |
RAA uses a novel RNA substrate tagged with a fluorescent reporter molecule (fluor) on one end and a quencher on the other. In the absence of RNases, the physical proximity of the quencher dampens fluorescence from the fluor to extremely low levels. When RNases are present, however, the RNA substrate is cleaved, and the fluor and quencher are spatially separated in solution. This causes the fluor to emit a bright green signal when excited by light of the appropriate wavelength. Fluorescence can be readily detected with a fluorometer. Since the fluorescence of the RAA Substrate increases over time when RNase activity is present, results monitored with a fluorometer can be evaluated kinetically. The sequence of the RAA Substrate has been carefully optimized to detect several RNases, including RNase A, RNase T1, RNase I, micrococcal nuclease, S1 nuclease, mung bean nuclease, and Benzonase.
RNase activity in a convenient and sensitive fluorimetric assay that delivers results in real time. Great for Quality Testing for RNase contamination of materials and supplies.
1 kb DNA Ladder in 1% agarose gel
• For sizing and quantification of double strand DNA fragments.
• Composed of ten bands as shown on right.
• The 4 kb band with higher concentration is easily distinguishable from the others.
• Premixed with 6X DNA loading buffer for direct gel loading.
1 kb DNA Ladder in 1% agarose gel
• For sizing and quantification of double strand DNA fragments.
• Composed of ten bands as shown on right.
• The 4 kb band with higher concentration is easily distinguishable from the others.
• Premixed with 6X DNA loading buffer for direct gel loading.