Roll up banners named as pull up banner ,retractable
banners. The obvisous feature is retractable if we do not need the banner. It
won`t occupy much space. So many retailers use them in their stores and trade
show .
The assemble of pull up banners :
1. Turn image with picture side
facing downwards
2. Peel back a small amount of
protective strip on the top profile
3. Place the top profile against
the upper edge of the image and remove the protective strip ,Press firmly
4. Remove the white protective
strip ,Apply the image with picture
side facing upwards,Follow the black line.
Apply extra tape
over the joint on both sides
5. Press the image with a firm
grip against the tube with left hand remove the locking pin.NOTE ,The mechanisms
now activated
6. Hold the image with both hands according to sketch ,let the image
carefully roll into the tube
7. Place the pin in the clips
under the tube
Changing of Image :
Remove the locking pin from the clips under
the tube
Pull out the image as far as possible
Adjust the length so that the locking pin
fits into the hole at the side of the tube
Lock the mechanism with the lockking pin
Remove the old image
Follow the instructions from 1-7
Please contact with Angelina Xu , she will send you the
video to show you to apply the banner to the roll banner stand. Whatsapp : 0086 13427921037
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Determination of Pb(II), Cd(II), Hg(II) and Cu(II) by irradiated attapulgite-ionic liquid complexes
The researchers first used high-energy electron beams to irradiate attapulgite. By optimizing the irradiation parameters and a series of characterizations, the attapulgite-ionic liquid composite was used to construct the electrode materials. At the same time, Pb(II), Cd(II), and Hg were used. (II) and Cu(II) were separately and simultaneously electrochemically detected. The dissolution behavior was analyzed and compared. It was found that the sensitivity and detection limit of the two assays were changed to different degrees. In the simultaneous detection, the detection limit and sensitivity of the composite materials on Hg(II) and Cu(II) were significantly improved, while the detection effect on Pb(II) and Cd(II) was reduced, among which Pb( The detection limits of II), Cd(II), Cu(II), and Hg(II) were 0.8, 0.5, 0.2, and 0.06 nM, respectively, while the sensitivity to Hg(II) was as high as 242.4 μA/μM.
The work has a certain reference value for the study of a variety of heavy metal ions and the detection of heavy metals in actual soil, and also provides a reference for the detection and analysis of a variety of heavy metal ions. The relevant research results were published in Chemical Engineering Journal 316 (2017) 383–392. The above research work was supported by the National Natural Science Foundation of China and the Institute of Technology Biology.
(Original title: Hefei Research Institute made progress in detection and analysis of heavy metal ions)
Hefei Institute of Chinese Academy of Sciences: progress in heavy metal ion detection research
[China Instrument Network Instrument Development] Soil heavy metal pollution is harmful to human health, and it has important scientific significance to detect and analyze heavy metal ions in soil. Recently, Xiong Shiquan, a researcher at the Institute of Technology Biology and Agricultural Engineering of the Chinese Academy of Sciences' Hefei Institute of Physical Science, constructed electrode materials by irradiating clay-ionic liquid complexes to achieve Cd(II), Pb(II), and Hg(II). Cu (II) detection and interaction analysis. In the electrochemical detection of heavy metal ions, most researches use higher cost synthetic materials to construct electrodes, measure one or more ions and study their mechanism. In this study, the research group used irradiated, inexpensive natural materials and ionic liquids with good conductivity to form complexes, enabling the detection and analysis of multiple heavy ions, and determining the differences in sensitivity and detection limits.