why is an electro thermal atomizer more sensitive than flame atomizer?

Q: Why is a filter paper preferred over a sintered glass filter

A: Filtration is a method used to distinguish solids from liquids or gases, using a filter medium that…

Q: An ideal RF value for a compound on a developed TLC plate is 0.30. How could you adjust the TLC…

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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: What is the hottest part of the flame in a bunsen burner when doing a colorimetric flame test?

A: The hottest part of Bunsen burner which is found just above the tip of the primary flame reaches…

Q: IR Sepectrometer organic

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Q: plalh the difference between the split and splitless mode of operation in a GO jector. Consider…

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Q: What is the benefit of using fluted filter paper instead of not folding it?

A: “Fluted “ filter paper (LEFT) is used when we wish to separate a liquid and a solid, keeping the…

Q: Study figures 31-6 a & b in chapter 31 (page 863) of your prescribed textbook, and draw separation…

A: 1

Q: What is Low-excess-air firing (LEA)?

A: Given: Low-excess-air firing (LEA)

Q: What is the Rf value for the uppermost yellow spot in TLC plate 3 (plate imaged below)? It is…

A: The TLC plate 3 with all the spots is given below :

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: On a 125cm retention times Long column. operated at look these. are obtained. octane 1.43 Air peak…

A: Since you have asked multiple questions we will answer the first one for you. To get the remaining…

Q: It is never necessary to take more than one composite sample per field. True Or False

A: Composite soil sampling is the traditional soil sampling method. To make a composite sample we mix…

Q: Calculate the Rf value for a spot in a TLC experiment if the solvent moved 13.8 cm and the spot…

A: In the given TLC experiment the movent of the solvent is = 13.8 cm The movement of the spot is = 6.5…

Q: A colored band shows an excessive amount of tailing as it passes through the column. What can you do…

A: Given problem, A colored band shows an excessive amount of tailing as it passes through the column.

Q: Why is catalytic dewaxing not considered as a separation process?

A: Since Catalytic dewaxing involves breaking and making bonds, so it is usually referred to as a…

Q: a) Discuss the effect of solvent polarity on Rf-values. b)Explain how the Rf (Retention…

A: Since you have posted two questions, we will solve first question for you. Please repost other…

Q: What safety precaution are needed when working with  a.) centrifuge  b.) Inductively Coupled Plasma…

A: a) safety precaution are needed when working with Centrifuge: Safety cups have to be used. The…

Q: Will a HPLC-UV method be more advantageous than a UV/Vis spectroscopic method for cefuroxime?…

A: Please find your solution below :  HPLC-UV method is more advantageous than a UV/Vis spectroscopic…

Q: Define the following terms used in HPLC:             (a) gradient elution             (b)…

A: Given terms, (a) gradient elution (b) isocratic elution (c) reversed-phase packing

Q: Which of the following is the correct flow of the mobile phase in HPLC? Solvent degasser>Guard…

A: The mobile phase in HPLC is used to transport the sample via seperation column and there by detector…

Q: if air can degrade a column and cause TC detector filaments to burn out, why do we use an air peak?

A: Interpretation -  If air can degrade a column and cause TC detector filaments to burn out, why do we…

Q: Is standardization against primary standard required for controlled potential coulometry ?

A: Controlled potential coulometry, as the name suggests, is a coulometry method that measures the…

Q: (A) Draw a sketch of the expected chromatrogram (peaks, broadening, relative elution times, etc.)

A: Given: A) To sketch the expected chromatogram.

Q: What would be the effect of increasing the carrier gas flow rate on the retention rate?

A: Retention time is the distance that the compound cover from the time of injection till the maxima in…

Q: 1.A double beam UV-vis spectrophotometer accommodates the sample at the cell farther from the…

A: Hi, we are supposed to answer one question. To get the remaining questions solved please mention the…

Q: Explain the working of air stripping system?

A: To find: The working of air stripping system

Q: At what stage was the internal standard added to the prepartions, in the protocol of this…

A: Step : 1             The required answer for the above question is follows as :

Q: Investigate the linear calibration range of this experiment.

A: Lead Concentration, ng ml-1 Absorbance 10 0.05 25 0.17 50 0.32 100 0.6 200 1.07…

Q: 1. Provide two advantages and two disadvantage of flow cytometry analysis. Briefly explain each.

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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: ship between Compour e on a TLC plate if v

A: The figure as,

Q: Estimate a diameter of a 2 denier circular crossection fiber made of Nylon 6 (density = 1.14 g/cm3).…

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Q: Why is a filter paper preferred over a sintered glass filter?

A: Filtered paper is made up of fiber and there are numerous holes (obviously of microscopic size) in…

Q: could products be isolated for further analysis suing TLC (thin-layer chromotography) as a…

A: Chromatography is a laboratory technique for the separation of a mixture into its components. The…

Q: Two students A, B did the Flame photometric analysis by different atomization methods in which the…

A: Flame Atomic Absorption Spectroscopy (FAAS), commonly called flame spectroscopy is a branch of…

Q: What is the concentration meant by inner filter effects?

A: The concentration for inner filter effects .

Q: What error would occur if the Sep-Pak C18 cartridge (the nonpolar stationary phase) was not…

A: C-18 cartridges are columns that are filled with packing material that act as stationary phase. The…

Q: select

A: We know that A detector is a device that converts an amount of radiation into some other measurable…

Q: Peak or band broadening is more likely to occur in: gradient elution or isocratic elution?

A: Gradient elution and iscratic elution are two different types of liquid chromatography. Both…

Q: 1.what data must be available when HPLC method is passed on 2.why eluents should be degassed

A: 1.data needed for HPLC: HPLC is High performance liquid chromatography. Chromatography:  It is a…

Q: In TLC, point of origin refers to O The bhottom edge of the TLC plnto.

A: Question 1: Option 1 is the correct answer. The point of origin was sketched very lightly with…

Q: a) With neat diagram explain the moving coil instruments. List out the advantages of the same. ? b)…

A: A)    Advantages:1. Consumes less power 2. Uniform scale of moving coil in MCM ( moving coil…

Q: Calculate the Rf value of a spot that travels 5.7 cm, with a solvent front that travels 13 cm.

A: Rf is a retardation factor that is defined as the distance traveled by a substance divided by the…

Q: Paper Chromatography laboratory report explanation

A: Paper chromatography is an analytical method used to separate colored chemicals or substances. It is…

Q: Why is the monochromator not placed after the TCH lamp when performing an absorbance or…

A: Since the basis for the AAS process is atomic ABSORPTION, the monochromator seeks to only allow the…

Q: What are the disadvantages of using a non- ideal linear velocity on the chromatographic separation…

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Q: Should you increase the diameter or length of the chromatography colum for increasing throughput?

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Q: According to given TLC plate below which of the following statement(s) is/ are false ? |- Rf value…

A: It is given a TLC plate in which the solvent travels a distance of 0.75 (approximately), and…