The commonly used Pipette kits are mainly composed of a pipette and a pipette tip. The pipette tip is a single empty 1000 ul pipette tips,200ul pipette tips,10ul pipette tips,low retention pipette tips Yong Yue Medical Technology(Kunshan) Co.,Ltd , https://www.yonyuemedicals.com
Cavity reservoir; the pipette uses the principle of air displacement and controls the maximum displacement of the piston by rotating a screw with an ultra-fine thread
displacement, and then control the amount of liquid suction. There are the following problems when using the above kit for suction: 1. The suction volume is controlled by the pipette
After the pipette is sterilized or used for a period of time, it is easy to cause "hidden" failures, which cause the operator to be difficult to detect.
The actual suction volume is inaccurate, and it needs to be adjusted frequently, and the operation is cumbersome and time-consuming; 2. To improve the pipetting accuracy, the operator's
The operation requirements are high, and it is easily affected by factors such as the suction speed, the depth of the tip below the liquid level, and the inclination angle of the pipette.
The actual suction volume will be heard; 3. The actual suction volume will be affected because the suction head cover is not tight and leaking, and it will not be easily detected; 4.
When performing experiments that require high accuracy, such as analysis, in the operation of equal volume aspiration of liquids with different densities, the actual
The actual suction volume will be affected by the density itself; 5. In order to improve the accuracy, this type of pipette needs to carry out high
Cost-optimized design results in extremely high pipette costs.
June 7 AMT Review of LME Base Metals
The following is a daily review of base metals transactions published on June 7 by Amalgamated Metal Trading Limited (AMT), a leading brokerage of the London Metal Exchange (LME). Copper: The price of copper briefly rose above the resistance level, but it soon closed at the day's low. It is expected that the market will test support levels. Aluminum: Not provided. Zinc: The zinc price rebounded from the overnight low to the level of $1325, and was later suppressed by fund selling. Tin: Following the trend of other base metals, tin prices fell today. Lead: Lead prices fell sharply today due to the fall in copper prices. Nickel: Today's tin price is under pressure and the trading range is 16600 -16100 USD. Despite the selling pressure from the fund, the price of tin received good support at 1,600 USD. The price of tin is now reported at 16150/200 USD/ton.