They keep the pH constant by taking up protons which are released during reactions, or by releasing protons when they are consumed by reactions. Buffers are a vital component for modeling biological systems and have many uses in cell culture, molecular biology, nucleic acid, protein purification, transformation and transfections.http://www.yunbangchina.com/bi....ological-buffer-seri

Backhoe: The backhoe is the most common type we have ever seen. It can be used for excavation below the shutdown working surface. The basic operation methods include ditch end excavation, ditch side excavation, straight line excavation, curve excavation, excavation with a certain angle, ultra-deep trench excavation and trench slope excavation.http://www.yuhowvibratoryhamme....r.com/excavator-part

In the garden, in the woods, on building sites, and even occasionally while travelling, tree saws can be an indispensable companion. There is one for every purpose.http://www.ykhfmy.com/folding-saw/

Before using the emulsifying machine, you must have a certain understanding of the characteristics, maintenance and repair of the emulsifying machine. Using the emulsifying machine in the right way can not only prolong the life of the emulsifying machine, but also will not cause unnecessary waste.http://www.wjcosmetics.com/emulsifying-machine/

A common application made by float blow molding machines is HDPE floats for photovoltaic (PV) systems. These systems are power generation systems that consist of PV modules mounted on water surfaces by using plastic floating platforms that are lightweight, cost-effective, and which may also vary in size and shape in order to fit the requirements of the manufacturer.http://www.hongjiumould.com/road-safety-mould/