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Miss Luo DNA testing applications in biochemistry, plant and animal tissue grinding, cell disruption, a variety of plastics, resins and attached copper, rubber and other polymer component analysis, trace elements judgment, food analysis, mineral research, medical surgical aid, medicines performance testing, identification of composition of textiles and so on. Nucleic acid / protein extraction - liquid nitrogen temperature grinding various animal tissues (including bones, teeth, hair, muscles and various organs) and plant tissues (lobe, stems, seeds, roots), effectively inhibit the degradation of nucleic acids, retention Biological activity of the enzyme used fresh for animal and plant cells nucleic acid, protein extraction sample handling. DNA Extraction: Human bones and teeth is very difficult by conventional grinding methods, especially when fresh. However, the bone material at a low temperature, "ground" and extract DNA, whether recent or long bones are before. Court laboratory freezer mill in the medical and dental records information is not sufficient to extract DNA from the victim or the deaths in the war, archaeologists using PCR to divide the frozen ground and ancient human DNA residue. SPEX freezer mill has been used to identify the remains of the Tsar family, as well as 5300 years ago, the Iceman ?tzi the bone fragments found in 1991 ALPS deal. China offers free Pacific Tsunami relatives identified the bodies, before DNA testing sample preparation instrument apply this model in the international project is not yet the Chinese to win the honor. Pharmaceutical drug testing and analysis - cryogenic grinding so sensitive to heat and mechanical pressure metabolite, isomer, and derivative compounds remain stained biological material sensitive to the characteristics of the original drug complex molecules and their metabolites, pharmaceutical research, or for Criminology experiments are very important. This example shows that many of the different isomers of the most relevant difference between the very important. Unfortunately, due to degradation by heat and pressure during polishing at room temperature in many of such compounds. If you are using SPEX freezer mill cryogenic grinding, the key for the preparation of samples, both compounds themselves or their organizations can be well retained. Retention of volatile matter - are individually sealed vial to ensure the control of volatile coal, oil shale, wax products, and many other organic materials with low molecular weight compounds substance, when it will soon be time matrix grinding volatile at room temperature for away. Use SPEX freezer mill to ensure the retention of volatile compounds, followed by purging gas enrichment analysis. Medical Research - fresh, sterilized bones broken in surgery after a bonding agent, medical materials directly into the grind into powder to test the in vivo toxicity, tissue homogenization medical schools and hospitals in the treatment of non-traditional items has started using a freezer mill. First, after fresh, sterilized broken bone in surgery as a bonding agent, the bone powder may be used as a growth nucleus, re-stimulation of bone formation around the prosthetic. Another is the heart tissue as a homogeneous medium. Cryo-milling machine can even be used as a medical material of the polishing powder, the powder is injected directly into the in vivo toxicity tests. In the dental field, cryogenic grinding teeth for crushing fresh do not need to be heated. It seems that the possibility of freezing grinding applications in the medical field are endless. Plastic / polymer component analysis - Low temperature makes difficult the ground plastics, resins, polymers and textile easy grinding, grinding the sample and avoid temperature rise due to friction caused by the impact of the molecular structure and composition of the sample information, as the countries For the content of heavy metals in plastics increasingly stringent requirements, using a freezer mill plastic samples fast, pollution-free treatment can greatly improve the speed of analysis and testing. Compliance with EU WEEE / RoHS directive-SPEX freezer mill components used in contact with the sample does not contain RoHS determination of metal components, in line with European testing standards. Sample processing capacity, easy to clean, to ensure pollution-free processing of samples for analysis, and greatly improve the results of heavy current and reliability. ? Applications Cryogenic Grinding is an important chemical analysis sample preparation methods. After processing the remains of Tsar CZAR NICHOLAS II, not only solved the puzzle troubled people nearly 80 years, further established the freeze grinding technology position in forensic and archaeological research. Frozen grinding while helping NASA, to ensure its lunar rock samples polluting processing and analysis. ? The accuracy of the data and the high reproducibility 1 is always in the process of grinding the sample temperature of liquid nitrogen. Within 2.1 minutes of cooling the sample to -100 ℃, 4 minutes and 30 seconds up to -196 ℃. 3 vials in the crushing process is fully closed state, the sample in the bottle intact to ensure that dangerous, it is important to control samples. 4 vials are individually sealed, very easy to clean after each broken, avoid cross-contamination between samples and external contamination. Versatility, user-friendly design 1. Touch screen, can grind time, cycle, pre-cooling time, hit the child's operating frequency and other parameters set. 2 removable control panel. 3. Instrument self-test function. 4.USB interface, can be connected to a computer or network is used to download the program or search for fault repair points. 5 can store 10 programs. 6 6801 may put a vial (sample capacity 1-100g) or with 6806 adapter also contains the four 6751 Vial (sample capacity 0.1-5g) for sample grinding. Durability 1 only one moving part - Collision, which significantly reduces the mechanical stress and prolong equipment life. 2 strong technical support:. SPEX CertiPrep company has over 50 years of professional production history of the sample pre-treatment equipment. Safety and reliability of a safety interlock. 2 is equipped with a temperature sensor, when the liquid nitrogen level low will automatically alarm, while the instrument stopped to protect the coil from damage. 3 6820 can be configured to auto-fill liquid nitrogen means. 4.CE (European standard quality) certification. Accessories: Buy 6870 Frozen grinders, randomly drawn with 6804/6805 cans and bottles with the sample holder. Vials and other accessories are sold separately. Frozen samples were prepared by grinding for a few crucial features: 1, when the sample is immersed in liquid nitrogen, many samples due to the low temperatures and become brittle. This makes some of the samples at room temperature can not be polished after grinding a powder hit subaction. 2, at low temperature, some of the information structure and composition of the sample can be retained.