Q: Why are some of the detectors listed unsuitable for HPLC?
A: HPLC is applicable for the use with solvent that has UV absorbance. A UV detector cannot be used…
Q: What is inert gas regeneration method?
A: Inert gases form the 18th group of periodic table. Inert gases like Helium, Neon are used in…
Q: 2. 2. 2. C- 5 4. Br 3 Br OCHS CS Scanned with CamScanner
A: The naming of organic compounds based on IUPAC nomenclature system. There are different type of…
Q: Consider the retention time of a pesticide is.13 8.5 min and the peak width at the base = 1.7 min,…
A: Given that, The retention time of a pesticide tr = 8.5 min Peak width at the base σt = 1.7 min…
Q: Explain the process of wet adsorption technique for control of NOx and SOx emissions?
A: Nowadays the extent of polluted particles increases in the atmosphere every day. To control the…
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A: A question based on analytical separations that is to be accomplished.
Q: kindly prepare an assignment on Application of HPLC in Drug Analysis: one page show name of the…
A: In high-performance liquid chromatography (HPLC) we inject the sample, which is in solution form,…
Q: What adsorbents are typically used in TLC? On a TLC, a compound traveled 3.5 cm when the solvent…
A: Thin layer chromatography is the technique that is used to separate or purify the compound from a…
Q: What are flame tests used to identify?
A: When the electrons of atoms are ground state, the electrons will be present in the lowest possible…
Q: Indicate which other analytical techniques TGA can be coupled with and what would be the advantages?
A:
Q: 1) In determination of potassium concentration using flame emission sepectroscopy, prior the…
A: A question based on Flame emission spectroscopy, which is to be accomplished.
Q: What are the processes of concentrate samples
A:
Q: Briefly compare and contrast flash-photolysis with shock-tube method.
A: Flash-photolysis and shock-tube method are used to study kinetics of fast reactions.
Q: Briefly discuss flame ionization detectors in gas chromatography under the following headings: a)…
A: Flame ionization detectors are most sensitive gas chromatographic detectors. It measures analytes in…
Q: Differentiate between isocratic elution and gradient elution. Why is gradient elution sometimes a…
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Q: .Which of the following solvents is not commonly used in reversed-phase HPLC? a) Ethanol Water b)…
A: The solvent which is not used commonly in HPLC has to be given,
Q: list the four most common reagents for open-vessel decomposition of inorganic analytical samples
A: We have to list the four most common reagents which are used in open - vessel decomposition of…
Q: Chemistry tabulate between HLC and plasma radiation sources.
A: HLC stands for hollow cathode lamp which are used in atomic absorption instruments. Plasma radiation…
Q: Explain the importance of controlling mobile phase pH in reversed phase HPLC and how this is…
A: When samples contain ionisable compounds, mobile phase pH can be one of the most important variables…
Q: Write the names of four main GC detectors (titles only). Which one of these detectors is used on its…
A: A question about GC detector, which is to be accomplished.
Q: High-pressure ATR is used to analyze very hard sample. True False
A: Attenuated total reflection (ATR) spectroscopy is an analysis technique that utilizes the surface of…
Q: Name 3 adsorbents used in TLC. Mention their use and properties. Why is it important to use a…
A: 3 adsorbents used in TLC - 1. Silica gel : Silica gel is by far the most widely used adsorbent and…
Q: Which of the following cannot be used as adsorbent in column Chromatography? a) Magnesium oxide b)…
A: The adsorbent is the stationary phase in column chromatography and fills the glass column. The…
Q: The plot of retention time versus detector signal in chromatography called?
A: In the GC-plot, the detector response signal is at the y-axis, and the retention time is at the…
Q: For indirect iodometric analysis of copper oxide, why did you not need to accurately weight out ki…
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Q: 1. What are the advantages and relevance of performing the following in a chemical pathology lab? i.…
A: A blank solution is a solution containing little to no analyte of interest, usually used to…
Q: Why are the application of TGA more limited than those for DSC?
A: TGA is one of the thermogravimetric techniques. In this process changes in chemical properties and…
Q: 1. 2. Silica 3. the column frits. 4. Surface metal ions act as multiple polar groups. is less stable…
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Q: Write the principles of the following methods:(i) Vapour phase refining(ii) Zone refining(iii)…
A: Refining is the method to purify the impure metal into pure metal using suitable methods of…
Q: Which Is The Most Commonly Used Detector In High Performance Liquid Chromatography And Why
A: High Performance Liquid Chromatography is abbreviated as HPLC. High performance liquid…
Q: It refers to the general term of adsorbent media used to visualize chromogenic compounds. A.…
A: Chromatogram refers to the general term of adsorbent media used to visualize chromogenic compounds.…
Q: What error is introduced into the determination of an Rf value if the top is left off the developing…
A: In chromatographic technique, the components of a mixture are separated by using a developing…
Q: 21 Select all the components that are part of a ICP-MS (as discussed during lectures) analytical…
A: Inductively coupled plasma mass spectrometry (ICP-MS) is one type of mass spectrometry which uses an…
Q: atomic absorption.
A: Atomic absorption spectroscopy is a spectroanalytical technique used for the quantitative…
Q: A gold on iron oxide catalyst was prepared by wet impregnation and dried at 110 °C overnight. The…
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Q: What is the concentration meant by inner filter effects?
A: The concentration for inner filter effects .
Q: 1. The properties that must be possessed by the adsorption reagent in air sampling are… a. Reagents…
A: Air sampling is the process by which the type and quantity of airborne contaminants present in an…
Q: Cuvette maintenance and cleaning is crucial for the success of spectroscopic analysis. Which is NOT…
A: Spectroscopic analysis is a technique that can be used to study the interaction between…
Q: At the completion of the experiment, a student measures the solvent front to be 55 mm from the…
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Q: Carbon nanotubes can be produced by ..method * chemical vapor deposition Sol-Gel physical vapor…
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Q: In UV and visible spectrophotometry, the specimen is generally dissolved in a solvent, and…
A: Given information, In UV and visible spectrophotometry, the specimen is generally dissolved…
Q: List three typical examples applications of SFC analysis.
A: SFC analysis refers to Supercritical fluid chromatography analysis. It is an analytical method that…
Q: In the beginning of the procedure, you will combine 1g of 3-nitrophthalic acid along with 2 mL of 8%…
A:
Q: Question 19 In AFM, what is the consequence of low scanning time? limited magnification thermal…
A: AFM refers to Atomic Force Microscopy or Scanning force Microscopy. It is a high resolution type of…
Q: A brief introduction on high performance liquid chromatography ( HPLC)
A: It is as follows
Q: which of the folowing(s) is/are true ? 1 split ratio in GC is a ratio of sample passed to column…
A: Column resolution increases with increase in length and decrease in diameter.
Q: High performance liquid chromatography (HPLC) can be used to : a. identify the various pigments from…
A: High performance liquid chromatography (HPLC) is defined as a column chromatography where at high…
Q: Choose the suitable GC detector (Thermal conductivity, Flame lonization or Electron capture) which…
A: In Flame ionization detector, the organic compound are burnt in presence of hydrogen flame and…
What is Low-excess-air firing (LEA)?
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- What is difference between SPE and DSPE?Choose the suitable GC detector (Thermal conductivity, Flame lonization or Electron capture) which are described by the given statements. i) Organic compounds that can be burnt ii) Halogen-containing organic compounds for example pesticides iii) Organic compounds that can be ionizedTabulate five advantages and limitations of microwave acid digestion over hot plate acid digestion sample preparation methods prior to spectroscopic metal detection.
- What are the uses of Iodine in KFR? answer at your own words and answer should be to the point, not any irrelevant wordsChoose the suitable GC detector (Thermal conductivity, Flame lonization or Electron capture) which are described by the given statements. i) Organic compounds that can be burnt i) Halogen-containing organic compounds for example pesticides ii) Organic compounds that can be ionizedGive a detailed description of how these both analytical separation protocol will be employed to recover river bodies from heavy metals and particulate matter. I. Centrifugation II. Chemical precipitation
- what is the concentration of the unknown sample using serial diluitions: 0.05M 1.7472nm, 0.025M 0.8569nm, 0.0125M 0.4167nm, 0.00625M 0.1958nm the epsilon value is 0.0101 and l is 1 cmHow many tabs are to be cut into the filter paper in construction of the apparatus, and how many different metals are to be placed on the apparatus? O There are to be 5 tabs cut, and S metals placed on them. There are to be 6 tabs cut, but only 5 metals placed on 5 of the 6 tabs. There are to be 5 tabs cut, and 7 metals placed on the S tabs, with two metals overlapping O No tabs are to be cut at all, and all 6 metals are to be placed wherever I feel like.What is instrumental analysis in chemistry?
- O Relative intensity 100 50 15 mva 20 41 40 57 60 68 81 80 85 100 OH 1943. 120Gb6cd_i-5c7IV_IVquz8U4UO2epq7z4kBnpYZ5iA/edit > 2 ons Help Calibri - - [12] + B 7 U . UA 2 3 ge 2: Problems of Water and Air Quality Questions 1. Why is it recommended to have a carbon monoxide detector on each floor of a home? Et © ª @ E- E 4-B-E- 2. What impact would the increased use of electric vehicles have on environmental damage caused by acid rain? 3. Why is ground level ozone most likely to reach its highest concentrations on hot, sunny days during periods of heavy traffic in large cities? Page 3: More Air Pollution Issues: Questions 4. The COVID-19 pandemic forced many people to work from home for extended periods. During these periods, many cities reported unusually low levels of smog. Suggest an explanation for this observation. Page 4: Water Pollution: Questions 5. Explain how ozone can be both harmful and beneficial. 6. India relies heavily on burning coal to generate electricity. How does India's reliance on coal contribute to the poor air quality experienced in many of…Given the following size frequency for a dust: Size Interval (um) 7-17.5 17.5-21 21-25 25-28 28-30 30-33 33-36 36-41 41-49 49-70 % by Number 10 10 10 10 10 10 10 10 10 10 a. Plot the cumulative frequency distributions (in %) of the number, surface area, and mass on linear graph paper assuming all particles are spheres with Pp 1.6 g cm ³. = b. Is this a log-normally distributed dust?