There are several things you should know before purchasing a pipette tip. The first thing to consider is the polypropylene blend of the tip. Virgin polypropylene is free of additives, including 9-octadecenamide, making it safe to use for testing and sample preparation. You should also look for plastics without any metal additives, as some dyes may contain them.
There are two main types of pipette tips. The first type is non-sterile, which is a common choice in most labs. The second type is sterile, which is designed to prevent contamination. The sterility of a sterile tip is guaranteed by a certificate of zero DNA, RNase, or ATP. It is also available in bagged tips that can be placed in your current pipette tip rack.
Another type of pipette tip is disposable. You can buy these in bulk in a bag or buy a replaceable reload system. This type of tip is a reusable ware that fits over a sterile container. These wares are designed to prevent contamination and are certified free of DNA, RNase, and ATP. If you're worried about the environmental impact of plastic pipette tips, you can find alternatives that are just as effective.
The other type of plastic pipette tip is non-sterile. It is usually a clear material and can be filtered or unfiltered. It is also important to check for irregularities as these will affect the quality of your pipetting. In addition to the cost of the tip, you should also check whether there are any metal additives in it. These metal additives can contaminate samples and affect your assays. Fortunately, most of these tips are marketed as being free of metal.
What kind of plastic are pipette tips? The most common plastics used to make pipette tips are polypropylene. These plastics are inert to chemical reactions and are used in a wide range of products, including medicine bottles. The types of plastics used in the manufacture of pipeste tips are very diverse. In the pharmaceutical industry, they are often produced in labs using LDPE.
Pipette tips are made of low-density polyethylene. It is commonly used in laboratory products such as milk jugs, laundry detergent bottles, and more. Most lab plastics are made of LDPE, which is a low-density polyethylene that is inert to chemicals. However, there are some exceptions to these rules. When buying a pipette tip, you should also look for ATP free pipette tips,etc.
In addition to sterile plastic, pipette tips can also be pre-sterilized. The pre-sterilized tip can help prevent contamination of liquids. It can also be autoclaved for a hundred times. The plastics used in a polypropylene tip are hydrophobic and can only be molded by a single-layer mold. If you're unsure what type of plastics these tips are made of, look for the information below.
Polypropylene is inert to chemicals. It is used in many injection-molded plastic products. It is commonly used in medicine bottles. It is recyclable, but it is not a popular material. LDPE is a type of polyethylene that is widely used for milk jugs and laundry detergent bottles. Some Rainin products are shrink-wrapped in LDPE.
The manufacturer should test their pipette tips for chemical residue. Often, the tips are coated with a layer of the chemicals to make them hydrophobic. In some cases, the coating process is not complete and the chemicals are not fully covered. This can lead to inconsistent results. The best solution for this problem is to replace the tips with a new one. Alternatively, you can consider replacing them with a sterile one.
The plastic that pipette tips are made of is important for the safety of your lab. Often, pipettes are used in the production of medicines. This type of plastic is hygienic and will minimize the risk of cross-contamination. This type of plastic is also highly flammable and can lead to an infection. If you are unsure of what kind of plastic to use, it is best to check the manufacturer's safety record.