What is a Good Aerobic Plate Count? - Labmate Online
WEBMay 27, 2022 · 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 ...
How Accurate is Carbon Dating? - Labmate Online
WEBAt 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 ...
What is the Difference Between Repeatability and Reproducibility ...
WEBJun 27, 2014 · 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 to Use a Pipette in the Lab - A Complete Guide - Labmate …
WEBMay 10, 2021 · Micro and macro pipettes. Designed with precision in mind, micropipettes allow scientists to accurately extract, transport and dispense liquids in the microlitre range. Micropipette capacity ranges from between 1 and 1000 microlitres. Macropipettes are designed for larger quantities and offer a capacity range of between 0.25–5 mL.
What Are the Different Types of Laboratory Glassware? - Labmate …
WEBDec 4, 2014 · Volumetric flasks. Similar to beakers, these are used to hold samples, but usually come in a conical or spherical shape with a tapering neck. Condensers. Specifically used to cool heated liquid or gas. Retorts. These are used for distillation purposes. Funnels. The tapered neck of a funnel allows easy pouring of a liquid into a narrow orifice.
What's the Difference Between NMR and MRI? - Labmate Online
WEBThe 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.
Sample Transportation in Laboratory Explained - Labmate Online
WEBFeb 25, 2022 · From pathology to vaccine development, sample transportation is one of the most important stages of the preanalytical pathway. While transporting samples from A to B may seem like a simple task, a variety of factors make the process challenging, complex and highly specialised. Ultimately, sample transportation can have a …
What is the Aerobic Plate Count (APC)? - Labmate Online
WEBMay 25, 2022 · From ready-to-eat food to wastewater, Aerobic Plate Count (APC) is used to estimate bacterial populations in samples. Results offer an indication of how many aerobic mesophilic bacteria - organisms that grow at standard body temperatures of between 20 and 40°C - are present in the sample. The term Aerobic Plate Count is …
What is the Function of a Pipette in a Laboratory? - Labmate Online
WEBMay 14, 2021 · Pipettes provide a clean and hygienic environment to aspirate, transport and dispense liquid samples. The purpose-built tools help to maintain quality assurance in the laboratory and ensure the most reliable and accurate results possible. Modern pipettes often feature disposable tips which helps to minimise the risk of cross contamination.
6 Best Practices for Laboratory Cleaning - Labmate Online
WEBUse 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 ...