Sample collection, processing and storage methods 1. Serum: Use a test tube that does not contain pyrogens and endotoxins. Avoid any cell stimulation during the operation. After collecting blood, centrifuge at 3000 rpm for 10 minutes to quickly and carefully separate serum and red blood cells. 2 ----more
The core tip: "You lie, you lie, you see it lights up!" This is not a link in a program, nor a high-tech lie detector in a movie. This is you and me "You lied, you lie, you see it lights up!" This is not a link in a program, nor a high-tech lie detector in a movie. This is a sm ----more
In view of the fact that certain foods contain melamine, as well as the proposed national standard and the US FDA method for screening milk powder, gluten powder, rice protein, zein, and soy protein, a new method for measuring melamine and its related compounds has been introduced Analyzer. Melam ----more
Color is closely related to people and is more important to the printing industry. From publishing design to printing, color is an important issue. The inks specified in the desktop design software are divided into two major categories, Spot Color Ink and Process Color Ink. The four-color ink use ----more
Page 1: 15 fresh gentleman boys and children's room Page 2: 15 fresh gentleman boys and children's room Page 3: 15 fresh gentleman boys and children's room There are two types of people in the world, one is extroverted and the other is controversial introverted. Introverted children ----more
"Capacity efficiency limit value and energy efficiency rating of volumetric air compressor" Basic Information Author: General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China, China National Standardization Manageme ----more
In order to enable the air compressor to operate normally and reliably, and to ensure the service life of the unit, a detailed maintenance plan must be established, and the personnel operation, regular maintenance, regular inspection and maintenance should be carried out to ke ----more