1. Precautions when choosing anthurium potted flowers Anthurium is a kind of mid-to-high-end viewing potted flowers that everyone loves to see. When buying anthurium potted flowers, it is recommended to go to the flower wholesale market to buy them. On the one hand, the quantity is abundant and the choice is large, at least it can be "one out of a hundred"; on the other hand, the price is relatively moderate. 1. Blade requirements. As a whole, choose plants with compact plant types, uniform leaf distribution, no partial crown phenomenon, flowers higher than the leaves, and distinct layers. The blades must not be mechanically wounded or damaged. 2. Flower openness. The number of flowers per plant should be more than 5, of which 3 to 4 are opening, and 1 to 2 buds are better. The buds should not be mechanically injured or damaged. When selecting, it is better to choose a single plant with bright color of buddha buds and white flesh at the top and yellowing at the top. 3. Variety type. It is better to choose the most popular "Trenza" in the past two years. The leaves of this species are firm, evenly distributed and well-developed protective tissues. The buddha buds are huge, the flowers are brightly colored, and the flowers and leaves are distinct. 2. Essentials of Combination Potted Plant Technology After anthurium is cultivated in combination, unexpected sensory effects can be obtained, which will give people a refreshing feeling. When combining potted plants, it is recommended that three plants be planted together. The pots are selected according to personal preference. 1. Requirements for cultivation substrates. Since Anthurium andraeanum is a typical fleshy root system, it has extremely high requirements for the permeability of the cultivation substrate. The proper choice of substrate is the basis for determining the growth of anthurium and the length of the viewing period during domestic raising. Therefore, for the filling substrate required for co-cultivation, it is recommended to choose the special cultivation peat soil of Danish Toppin or Germany Kleisman, and avoid using peat soil, humus soil or garden. Soil and other substrates with poor permeability, water retention and fertility retention. 2. Properly fix the flower stems. By artificially fixing the flower stems, all the flower stems in the combined potted plant can be distributed, scattered and layered, and the appearance can be improved qualitatively, and unexpected viewing effects can be obtained. The fixed arrow used can be purchased for the fixed butterfly orchid sword, and the length should be 60-80cm. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone
There are mainly the following parts:
1. Sampling swab with disposable sterile plastic rod/rayon head
2. Sterile sampling tube containing 3ml of virus maintenance solution (gentamicin and amphotericin B are selected to better inhibit the fungus in the sample. Avoid the human sensitization reaction that may be caused by penicillin in the traditional sampling solution.)
In addition, there are additional parts such as a tongue depressor, a biosafety bag, etc.
Intended to use
1. It is used for monitoring and sampling of infectious pathogenic microorganisms by disease control departments and clinical departments.
It is suitable for sampling of influenza virus (common influenza, highly pathogenic avian influenza, H1N1 influenza virus, etc.), hand, foot and mouth virus and other types of viruses. It is also used for sampling of Mycoplasma, Chlamydia, Ureaplasma, etc.
2. It is used to transport nasopharyngeal swab samples or tissue samples from specific parts from the sampling site to the testing laboratory for PCR extraction and testing.
3. It is used to preserve nasopharyngeal swab samples or tissue samples from specific parts for necessary cell culture.
The virus sampling tubes are loaded with infectious substances, and some are even highly pathogenic substances. Therefore, the requirements for packaging containers are very strict, and three requirements must be met at the same time:
1. The safety of transportation.
Ensure that the sample does not leak during transportation. Sampling tubes that comply with WHO regulations and biosafety regulations.
2. The security of preservation.
Ensure that the sample does not leak during storage. Sampling tubes that comply with WHO regulations and biosafety regulations.
3. The validity of the sample.
Make sure that the sampling tube itself will not have a toxic effect on the sample.
Virus Sampling Tube,Virus Sampling Kit,Disposable Vtm Sampling Kit,Vtm Sampling Tube With Swab Jilin Sinoscience Technology Co. LTD , https://www.jlgkscience.com