What is a Good Aerobic Plate Count? - Labmate Online
2022年5月27日 · Aerobic Plate Count is often used to detect a family of “indicator” bacteria called Enterobacteriaceae. The family includes several strains found in the intestinal tracts of warm-blooded animals, such as Salmonella and Shigella. APC results that indicate Enterobacteriaceae concentrations of more than 104 per gram suggest food is ...
6 Best Practices for Laboratory Cleaning - Labmate Online
Use deionised water. While water straight from the tap is considered clean and safe to drink, it’s not always suitable for laboratory cleaning purposes. For example, laboratory glassware should be rinsed with deionised water. This ensures the water is free from dissolved particles such as minerals, salts, carbon dioxide and other organic ...
What's the Difference Between NMR and MRI? - Labmate Online
2021年10月21日 · The differences between NMR and MRI. While NMR uses radiation frequencies to generate information, MRI generates information based on radiation intensity. In NMR spectroscopy, the goal is to determine the chemical structure of matter whereas. In MRI imaging, the goal is to generate detailed images of the body.
What is the Difference Between Repeatability and Reproducibility ...
2014年6月27日 · In the context of an experiment, repeatability measures the variation in measurements taken by a single instrument or person under the same conditions, while reproducibility measures whether an entire study or experiment can be reproduced in its entirety. Within scientific write ups, reproducibility and repeatability are often reported as ...
How Accurate is Carbon Dating? - Labmate Online
At its most basic level, carbon dating is the method of determining the age of organic material by measuring the levels of carbon found in it. Specifically, there are two types of carbon found in organic materials: carbon 12 (C-12) and carbon 14 (C-14). It is imperative to remember that the material must have been alive at one point to absorb ...
Greening Laboratories: How My Green Lab Supports Net-Zero Goals
2023年9月7日 · Advancing Sustainability in the Scientific Industry: Embracing Net-Zero Goals with My Green Lab Certification. The scientific industry plays a pivotal role in the advancement of human knowledge.
What Are the Different Types of Laboratory Glassware? - Labmate …
2014年12月4日 · Here are some of the different types of glass instruments used in laboratories: Bulb and graduated pipettes. These are used to transport specific amounts of fluids from one place to another. Burettes. These are used to dispense exact quantities of liquid into another vessel. Beakers.
How to Use a Pipette in the Lab - A Complete Guide - Labmate …
Most laboratory pipettes use an air vacuum above the liquid-holding chamber to suck up and release liquid. This air displacement design is used in both hand-operated and electronic pipettes and sees the tip inserted just below the surface of a liquid. Pressure on the plunger is then released, which draws up fluid into the tip.
NMR Basics 101 — What is Shimming? - Labmate Online
Request information. Aug 28 2014. A shim is a device used to adjust the homogeneity of a magnetic field. Shimming is a process that is carried out to correct any inhomogeneities in the applied magnetic field during a nuclear magnetic resonance (NMR) experiment. The inhomogeneities can come from two main sources:
What Are the Different Types of Spectroscopy? - Labmate Online
2022年4月8日 · Nuclear Magnetic Resonance (NMR) Spectroscopy relies on specialised equipment to map the molecular structure of matter at the atomic level. The advanced technique is also used to determine solubility, phase changes and predict diffusion potential. A magnetic field is used to excite an atomic nucleus and force it to emit radio frequency pulses.