Q: Plot absorbance as a function of the concentration of Cr (IV) standard. Determine the equation of…
A: We are given the experimental data for the standard addition of Cr(IV) standard in river water.…
Q: Discuss the advantages and disadvantages of sequential versus simultaneous multichannel ICP…
A: An inductively coupled plasma is abbreviated as ICP. This is a type of plasma source in which…
Q: a) Explain matrix effect.
A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…
Q: As the cell thickness increases, the intensity of the transmitted light also increases. Is this True…
A: Ans - This statement is false. Explain - As the cell thickness increases, the intensity…
Q: What is two types of ionization method in GC MSD?
A:
Q: Why is a suppressor used in ion chromatography?
A: Ion chromatography- It is used for water chemistry analysis. Ion chromatography helps in measuring…
Q: How does an ESI source work (from injection to ions beam formation)?
A: Electrospray ionization (ESI) is a technique used in mass spectrometry to produce ions using an…
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: Calculate the [FeSCN2+] using volumes of stock solutions. Presume that all the SCN– ions react.…
A: The data given is,
Q: You are provided with standard stock solutions containing 1000ppm each of Cu, Mn, K, Na and Ca. You…
A: So, we are provided with 1000 ppm each of Cu, Mn, K, Na and Ca.
Q: Write down three possible applications of the analytical ultracentrifuge
A: Analytical ultracentrifugation (AUC) is a versatile and powerful method for the quantitative…
Q: How can band broadening be reduced in HPLC Eddy Diffusion? A. use smaller particles for stationary…
A: HPLC is based on the principle where the sample (analyte) is distributed between a mobile phase…
Q: Indicate which other analytical techniques TGA can be coupled with and what would be the advantages?
A:
Q: Does the amount of radiation (cpm) increase or decrease as the thickness of the shielding increases…
A: Given information, The distance between the source and the sensor stays the same
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: Column resolution is an indicator to identify the selectivities and efficiencies of the column…
A:
Q: Which is NOT an appropriate detector for a spectrophotometer? photodiode array photomultiplier tube…
A:
Q: Using this table for the standard durve of cobalt (II) solution in UV Vis Molarity (M) Absorbance…
A: Given data L=10 cm we know that Beer Law is Absorbance=ε×M×Lwhere : M=Molarity , L=Length ,…
Q: Cite problems why t
A:
Q: What is the role of specific visualizing agents in a Thin layer Chromatography? Please shortly…
A: Thin layer Chromatography - Thin-layer chromatography is a chromatography technique used to separate…
Q: columns of equal length (time in min). Column 1 Column 2 10 suodsa opaad
A: Answer. For Component A we have 8-1.2 = 6.8
Q: size exclusion chromatography
A: The size exclusion chromatography can be used to determine the quaternary structure of the proteins…
Q: Describe the following properties of chromatogram (including formula if applicable): Bandwidth…
A: 1.Bandwidth sets the frequency around the wavelength provided by the detector to view and report…
Q: (A) Draw a sketch of the expected chromatrogram (peaks, broadening, relative elution times, etc.)
A: Given: A) To sketch the expected chromatogram.
Q: The following are applications for High Performance Liquid Chromatography, Except: Amplification…
A: Answer = EXCEPT (Amplification)
Q: Which of the following factors DOES NOT affect retention time of a sample undergoing normal phase…
A: Retention time is the time period where a sample spend on column. Here we have to tell which factor…
Q: 2. What type of instrumental analysis technique is used to measure the concentration of an analyte…
A:
Q: If a plot between absorption and concentration was not linear and a plot between absorbance and bath…
A: We know that absorbance is given by the formula, A = ∈ c l where A = absorbancec = concentrationl=…
Q: What are the main components of a spectrophotometer? Choose all that applies. radiation source…
A:
Q: Explain why internal standard can be used for ICP-OES but is not used for AAS
A: Internal standard is the chemical that is added to the sample in order to improve the precision of…
Q: The determination of iron in wines was carried out by atomic absorption spectrophotometry, using the…
A: The conversion relations for the concentration term are shown below.
Q: "Chromatography in separation is based on the difference in components charge density a O solubility…
A: Ans volatility The chromatography is a analytical techniques of the chemistry in which the…
Q: pectrofluorometry is potentially more sensitive and selective compared to spectrophotometry
A:
Q: Points to discuss: • Discuss the relationship between the concentration of the standard solution and…
A: Points to discuss: • Discuss the relationship between the concentration of the standard solution and…
Q: Interference in sample can have following impact except a. Amount of time needed for analysis is…
A: Quantitative analysis is method of determining the amount or the quantity of the analyte that is…
Q: Concentration Transmittance (%) Absorbance Solution 1 0.3 0.52 Solution 2 6.3 Solution 3 26.2…
A: to calculate the absorbance, we will take the help of Lambert-beer law: formula: A= -log10(T) A:…
Q: What is the role of stationary phase and mobile phase in Chromatography? Please shortly answer at…
A: The stationary phase remains fixed in place while the mobile phase carries the components of the…
Q: Column resolution is an indicator to identify the selectivities and efficiencies of the column…
A: Coloumn resolution is an indicator to identify selectivities and efficiencies of coloumn ability to…
Q: In thin layer chromatography, changing the mobile phase will alter the Rf value of a compound. O…
A: This can be solved as follows
Q: You have a concentrated sample solution of a new wine from a winery to analyze for malic acid…
A: A common relation for the absorbance recorded is, A=εclA=Absorbanceε=Molar absorptivity…
Q: n an experiment on UV-Vis Spectrophotometry, What are the results for A and B? A. Calibration Curve…
A: Given: Concentration of Cu+2 solution ppm (Cu+2) Absorbance 0.01 635.46 0.0965 0.02 1270.92…
Q: a) You measure the percent transmittance of a solution containing chromophore X at 400nm in a 1-cm…
A: From data T%= 50%, so, T= 0.5 l = 1 cm c = 0.5mM= 0.0005M A1 = 0.2 A2 = 0.8 Furthermore, molar…
Q: Does the amount of radiation (cpm) increase or decrease as the distance between the sorce and the…
A: Amount of radiation between the source and sensor is determine using the inverse square formula:…
Q: Discuss the application of any three of the following analytical methods for gold, copper and iron…
A: MINERAL EXPLORATION: The process of finding out the traces of any mineralization present in the…
Q: UVVIS spectrophotometry
A: Correct: A
Q: 1. Which following statement is NOT correct for Matrix-Assisted Laser Desorption/Ionization (MALDI)…
A: 1) C. Matrix materials is not applied for biomolecules with laser wavelengths 2) B. requires that…
Q: The basic spectrophotometer is composed of four components. Which component listed below is NOT one…
A: A question based on tools in analytical chemistry that is to be accomplished.
Step by step
Solved in 2 steps with 1 images
- explain why alumina containing zeolites possess chemically active surfaceWhat is inductive effect with example and its applicationsPlease complete Table 2 and show the calculations for protein concentration and the concentration of the undiluted sample. a). Using Excel software, enter data from Table 1 to plot a standard curve (corrected average absorbance on Y-axis and protein concentrations on X-axis). The standard curve must contain correct labels on both axes. b). From the standard curve, obtain a best fit line and equation. c). Use the best fit equation and data from Table 2 to find the concentrations of proteins in sample A2-D2 and E1. [onto your plotted standard curve, indicate where A595 of A2-D2 and E1 are located] d). Calculate the concentrations of proteins in undiluted samples A to E. Thank you very much.
- Flame Atomic Absorption Spectroscopy (FAAS) method is selected due to its wide applicability for metal ion analysis in drinking water samples. Title: Determine the concentration of selected heavy metals (Cu and Cr) in the unknown tap water sample. Question: Discuss.Plot (using appropriate scaling, with titles, axis labels, and units where applicable) the absorbance versus the concentration of each standard on graph paper. The slope of the best- fit line will be , in A = ,bc (Beer’s Law, where A is absorbance, , the extinction coefficient, b the path length, and c the concentration of the sample). Produce and submit the standard curve6. Give one advantage of contact printing over proximity printing. Giveone disadvantage of contact printing compared to proximity printing. 7. A pattern is to be printed using deep UV radiation for the exposure.Should the mask material be made of glass or quartz? Why? 8. Pattern resolution is increased by decreasing exposure wavelength. Ifa projection printer is used, will the objective lens need to be redesigned?Why or why not? 9. In a clean room rated at class 1000, on the average, how many particles percubic meter are there? Assume a particle size of 1 um. 10. After exposing a resist, why is it a good idea to bake the resist? 11. When positive resist is exposed, what happens to its solubility? 12.With respect to transferring a pattern to the resist, what is meant byresolution? 13.What kind of cleaning process is best suited for a wafer before it isoxidized?
- Determine the appropriate LED colour and wavelength range that should be used tomeasure the absorbance of red, blue and yellow dye solutions. I think it has something to do with complimentary colours but im not sureThe detection limits reported for Aluminum with ICP-AES and GFAAS are 2 ppb and 5 pg, respectively. If we assume a 20-μL sample volume is used with the GFAAS determination, which method has the better (i.e., lower) detection limit? (I am expecting a calculation here.)need help with this chemistry review and can pls be clear with step by step