0
What happens to the IR spectrum if the sample being analyzed is too concentrated?
Wiki User
∙ 11y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What information can be obtained from a sample analyzed using atomic absorption spectroscopy?
the identities and quantities of elements present
What is the function of cotton swab in microbiology?
it is used for testing a surface for presence of microbes or collect a sample to be analyzed
when is flame test used?
to identify an unknown sample by its emission spectrum
What happens in a spectrophotometer?
Light is filtered to remove all but one specific wavelength, this wavelength is then passed through the sample. A sensor on the other side of the sample measures the intensity of the light that was not absorbed which is compared to the initial intensity of the light. This is an indirect approach to measuring the absorbance of the sample.
A scientist has analyzed the chemicals that make of a sample of an unknown substance. Which chemicals would be the best indicator that the unknown substance is a plant?
cellulose and starch
What is a flame tested used for?
To identify an unknown sample by its emission spectrum
What is the chemistry behind sulphated ash content test?
Sulfated Ash is the ash content of fresh sample being analyzed as determined in the method. Indicates level of metallic (inorganic) contents in the sample. The sample is first chared with concentrated Sulfuric Acid at low temperature in Platinum / Silica crucible and then incinerate the sample in furnace at 600 - 900°C. At this temperature the organic components are fully burnt and only the ash remains, consisting of metal oxides and contaminants. By fuming off the sample with concentrated sulfuric acid the oxides in the ash are transformed into sulfates. The difference in weight serves as measurement. UDAY SALUNKE
Why do you sample forensic evidence?
Forensic evidence is not 'sampled,' it is ANALYZED, by taking a 'sample' of it and conducting laboratory or or other technical tests or analyses of it.
How do you measure the amount of nutrients in food?
Using a gas chromatograph, chemists burn a small sample of a food (or a thoroughly homogenized, uniform sample). The flame emitted by the burning sample emits light of various frequencies, corresponding to the individual elements and compounds present in the sample. The spectrum of light is analyzed to determine the chemical content of the sample. Additionally, foods will be analyzed chemically, as what we call 'vitamins and minerals' in nutritional terms, we call organic proteins and acids, and inorganic metallic compounds. Each of these will have its own chemical properties which can be detected in a laboratory environment. Usually, however, the values for complicated, prepared food items are estimated by calculating them mathematically from known values for basic food items.
How do you obtain a concentrated sample of the ink to run a chromatogram?
Go to alaska
This is the feature of a population or sample which is being studdiedsurveyedfor measured resulting in data to be analyzed?
atjnhfn
What information can be obtained from a sample analyzed using atomic absorption spectroscopy?
the identities and quantities of elements present
How do you know if asbestos is in your vinyl?
To find out if asbestos is in your vinyl, have a small sample collected and analyzed by a qualified laboratory.
What is the function of cotton swab in microbiology?
it is used for testing a surface for presence of microbes or collect a sample to be analyzed
when is flame test used?
to identify an unknown sample by its emission spectrum
What happens in a spectrophotometer?
Light is filtered to remove all but one specific wavelength, this wavelength is then passed through the sample. A sensor on the other side of the sample measures the intensity of the light that was not absorbed which is compared to the initial intensity of the light. This is an indirect approach to measuring the absorbance of the sample.
What are the Factors which cause defects in NMR spectrum?
The main factor is the presence of water. If the sample is NOT fully dried of water it will cause a big 'spike' in the spectrum .
