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 ...
What is the Difference Between Repeatability and Reproducibility ...
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 ...
What Are the Different Types of Laboratory Glassware? - Labmate …
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.
A Brief Guide of Pipette Types - Labmate Online
Vacuum-Assisted Pipettes. Vacuum-assisted pipettes may be graduated or volumetric. Graduated vacuum-assisted pipettes employ a number of graduation marks, while volumetric vacuum-assisted pipettes measure a single volume, so exhibit just one graduation mark. Vacuum-assisted pipettes are made from polystyrene, glass or borosilicate.
How to Use a Pipette in the Lab - A Complete Guide - Labmate …
May 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.
Is Drinking Blood Dangerous? - Labmate Online
Aug 3, 2016 · As well as the iron overload, drinking blood is dangerous simply because it can spread disease. There are a number of blood-borne diseases that would potentially be spread by drinking blood. Hepatitis B, Hepatitis C and HIV are all diseases that could be contracted through ingesting infected blood. So it’s safe to say, as a general rule ...
What Are the Different Types of Spectroscopy? - Labmate Online
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.
How Does Flame Spectroscopy Work? - Labmate Online
The fundamentals of flame spectroscopy. Like other forms of spectroscopy, the technique uses light to excite atoms and transfer them to a high energy level. As the name suggests, a flame is used to generate the energy needed to excite the atoms. Samples are generally prepared as solutions, which are sprayed or aspirated onto the flame.
What is the Function of a Pipette in a Laboratory? - Labmate Online
May 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.
What Are Eggshells Made Up Of? - Labmate Online
Generally chicken eggshells are made up of 95% calcium carbonate. The remaining 5% features hundreds of different proteins that affect how calcium carbonate crystallises. It's this perfectly balanced cocktail that allows mineral crystals and proteins to form an eggshell that’s crack-resistant, then use nanoscale adjustments to change the ...