hy199712bu a făcut o actualizare Acum 5 luni, 2 săptămâni
The PCR tube is highly optimized to achieve excellent PCR Supplies performance in various thermal cyclers. These innovative and RNase-free PCR tubes are the results of years of research on the best design of PCR tubes, coupled with meticulous craftsmanship to ensure that each product is as perfect as the first product. The results speak for themselves, and we are happy to introduce our ultimate PCR tube to the world. We will explore some of the defining characteristics of these advanced thin-walled PCR tubes.
RNase-free PCR tubes with broad thermal cycler compatibility
Our RNase free PCR Tubes are compatible with all the most common thermal cyclers on the market. We make sure to optimize their design to ensure PCR performance that is agnostic to the thermal cycler. This means that no matter which brand of thermal cycler you use, their performance is the same.
The pipette is one of the most commonly used handheld instruments in a research laboratory and the model of the pipette is chosen based on your needs for performance, ergonomics and quality. But it doesn’t end there – you may have the most advanced pipette on the market but a poor quality tip means that the reproducibility of your results may be at risk.
Don’t be caught out; the fact is that quality Pipette Tips are critical to ensuring that the correct volume of liquid is aspirated and dispensed and that your samples are not contaminated in the process. Here are some quick hints to ensure that your pipette tips are a perfect match for your pipette of choice and do not compromise your lab work.
The Reagent Bottle is a special container for various liquids and solid reagents in the laboratory. The shape of the reagent bottle is mainly divided into narrow mouth and wide mouth.
Since reagent bottles are only used for normal temperature storage reagents, they are usually made of sodium calcium plain glass. In order to ensure a certain strength, the bottle wall is generally thicker. Reagent bottle is divided into narrow mouth or wide mouth, clear or amber,and with stopper or without stopper. Among them, glass stopper, no matter small mouth, wide mouth, should have inside ground sand processing craft.
The specifications of HDPE Reagent Bottles are expressed in volume size, small to 30mL, 60mL, ranging from thousands to tens of thousands of ml.
Precautions for use:
(1) when the reagent bottle is not used, you need to slip the paper between the bottle stopper and the bottle mouth to prevent adhesion. As mentioned above, none of the reagent bottles can be used for heating.
(2) according to holding the physical and chemical properties of the reagents needed reagent bottles of the general principle is: dress up solid reagent selection jar, holding liquid reagent – choose fine mouth bottle, all see light is easy to break down, or metamorphic reagent to choose a brown bottle, holding low boiling point volatile reagent chooses frosted PP Reagent Bottles, holding an alkaline reagent selection with a rubber plug reagent bottles, and so on. If the reagent has the above multiple physical and chemical indexes, the appropriate reagent bottle can be selected according to the above principles.
(3) some special reagents, such as hydrofluoric acid, are not available in any glass reagent bottles and are used in plastic bottles.
An Erlenmeyer flask is a widely used type of laboratory flask that features a conical base with a cylindrical neck. They are usually marked on the side (graduated) to indicate the approximate volume of their contents. It is named after the German chemist Emil Erlenmeyer, who created it in 1861.
The conical flask is similar to the beaker, but is distinguished by its narrow neck. The neck allows the flask to be stoppered using rubber bungs or cotton wool. The conical shape allows the contents to be swirled or stirred during an experiment (as is required in titration); the narrow neck keeps the contents from spilling. The smaller neck also slows evaporative loss better than a beaker. The flat bottom of the conical flask makes it unlikely to tip over, unlike the Florence flask.
Erlenmeyer flasks are used for pH titrations and in microbiology for the preparation of microbial cultures. Plastic Erlenmeyer Flasks used in cell culture are pre-sterilized and feature closures and vented closures to enhance gas exchange during incubation and shaking.
If the flask is to be heated in an oil or water bath, a ‘C’ shaped lead or iron weight may be placed over the outside to keep the flask firmly planted.
When heating, it is usually placed on a ring held to a ring stand by means of a ring clamp. The ring keeps it over a Bunsen burner so that it is heated by the flame of the burner. When set up this way, a wire gauze mesh or pad is placed between the ring and the flask to prevent the flames from directly touching the glass. An alternative way to set up the apparatus is to clamp the flask directly to the ring stand by means of holding it with a test tube clamp around the neck of the flask.