Sorfa serological pipettes are
designed to be used with electromotion pipette controllers and manual
pipette pump to transfer liquid in various volume for laboratory use.
With high transparency polystyrene and clear graduation, the serological pipettes are
easy to be read in accurate volume by users. Graduation is printed on
pipette surface with the accuracy of ± 2%. To meet global market need,
Pipette Tips are crafted to two forms, welding and stretching. Serological Pipettes Serological Pipettes,Mini Serological Pipette,Welding Serological Pipette Zhejiang Sorfa Medical Plastic Co., Ltd. (Ningbo Jiangdong Aron Imp&Exp. Co.LTD) , http://www.sorfapipettes.com
Serological Pipettes vary from 1ml, 2 ml, 5ml, 10ml, 15ml to 25 ml, 50
ml and 100ml. Seven types of color code on tips make pipettes easily
recognizable in different volume. Preferably, each pipette contains a
filter plug which is better than cotton plug in its bore to prevent
passage of particulates. Sorfa has the ability to produce all current serological pipettes including welding pipette, stretching pipette, Aspirating Pipette, short pipette, with-tip pipette and colorized pipette.
Two types of packaging are available for pipettes: buck packaging and
individually packaging in plastic/paper wrapper. All Sorfa serological pipettes are packaged in bags with sterilization bags, RNase-free, DNase-free and Non-pyrogenic.
Fresh beans preserved three methods
1, bag storage method: first bean pods lying flat in the basket or wooden box, leaving a certain gap in the middle, do not get too tight. Then move into the cellar, stack the baskets and boxes, and seal them with plastic film. Begin to open the film every day to change the air once. This method can be stored for two months. 2, sand storage method: Shop in the first 5 cm thick sand, the top 5-7 cm tall beans, then a layer of sand layer of beans, put three layers of beans, the top covered with 5 cm thick sand. Drop the heap every 10 days. This method can be stored for 1-2 months. 3, cabbage folder bean storage method: before the beginning of autumn each seeding two rows of beans, around the summer when the planting of the cabbage before and after the start of transplanting to the side of the bean pods, and beans pods 21-24 cm away. Before the next frost, pick a big soft tender green bean that was not grown in the middle of the vine. Pick out the vigorously growing Chinese cabbage in the vicinity. Open each leaf a little and plunge the beans straight into the leaves. At the bottom of the hors d'oeuvre, one leaf is inserted between each leaf, and the center is also inserted. Then the cabbage is bundled up slightly to make it continue to wrap. In general, more than 20 beans can be inserted per cabbage and weigh more than 250 grams. Liko was harvested together with cabbage and stored in the pit to strengthen management. When it is time to sell, gently plow the cabbage leaves and extract the beans. The beans preserved in this way are as fresh as ever.