Describe the application of AAS (Atomic Absorption Spectrophotometry) analytical methods for gold, copper and iron ore deposit evaluation which involve surface and subsurface geochemical sampling in a tropical environment

Describe the application of AAS (Atomic Absorption Spectrophotometry) analytical methods for gold, copper and iron ore deposit evaluation which involve surface and subsurface geochemical sampling in a tropical environment

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter32: Gas Chromatography

Section: Chapter Questions

Problem 32.10QAP

See similar textbooks

Related questions

Q: A stock solution of analyte is made by dissolving 34.83 mg of copper (II) acetate hexahydrate (fw =…

A: Given, mass of copper (II) acetate hexahydrate =34.83 mg volume of water = 25.00 mL mass of…

Q: Copper was determined in a river water sample by atomic absorption spectrometry and the method of…

Q: Lead in dry river sediment was extracted with 25 wt% HNO3 at incubation temperatures for 1 hr. Then…

Q: Describe the principle and operation of anodic stripping voltammetry (ASV). How does it differ from…

A: Here we have to understand three points 1. Anodic Stripping Voltammetry (ASV) 2. adsorptive…

Q: The data in the table below were obtained during a determination of lead in lake water by atomic…

A: To find the equation of line, first input data in excel sheet then make a scatter plot for that data…

Q: The part of SEM that is responsible for the production of electrons. * Electron guns Condenser lens…

A: SEM ,TEM ,XPS are the analytical techniques used for surface analysis of samples.

Q: A sample of water from the North Sea was analysed by ion-chromatography and the sulfate…

Q: A chemist received a report from an analysis involving the iron-phenanthroline method, containing…

A: A question based on absorption that is to be accomplished.

Q: B. The copper concentration in a contaminated salt sample was determined by flame atomic absorption…

A: #8: Flame atomic absorption spectroscopy is used to find the copper concentration in the…

Q: A student wanted to determine the level of lead in amoxicillin powder, so he transferred 148 mg of…

A: Given the absorbance of the diluted solution, Y = 0.48 Calibration equation is: Y = 12.25X - 0.05…

Q: I need help calculating the following values please!!!!!

A: 1.) Volume of EDTA used is calculated as : Final burette reading - Initial burette reading 2.)…

Q: Analytical Chemistry True or False Absorption is the process by which ions are retained on the…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: Many rivers in Ghana are affected by illegal small-scale mining. Studies have revealed extremely…

A: Before the industrial and medical purpose, polluted air must be undergone through various steps 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: What spectroscopic technique are you going to suggest to a mining company who wishes to determine…

A: A question based on spectroscopy, which is to be accomplished.

Q: To determine the concentration of these analyte ions in a mixture, the mixture absorbance is…

A: This is application of the Lambert beer law . Here we are required the molar concentration of X3+…

Q: An eggshell is treated with NaOH to remove the membrane, dried and found to weigh 5.131 g. The shell…

Q: 10. The following buffered solutions of weak acid (FHA spectrophotometrically in 2.00 cm cells 1.00…

A: The indicator (absorbing species equilibrium) can be written as: HA+H2O↔H3O++A-…

Q: B. The copper concentration in a contaminated salt sample was determined by flame atomic absorption…

A: Here standard addition technique is used to standardize the copper sample in which to a fixed volume…

Q: The table shows a series of standard additions of Cu(II)to acidified tap water samples measured by…

A: The solution of the question is given below:

Q: Discuss the application of any three of the following analytical methods for gold, copper and iron…

Q: Describe two applications of Potentiometric analysis

A: Potentiometric analysis is a process in which the potential of a substance is measured with respect…

Q: Sample preparation has been regarded as the main bottleneck in the development of sensitive,…

A: Sample preparation step is most important step in analysis of trace elements. Dissolution of…

Q: A graphite furnace atomic absorption spectrophotometer (AAS) was used to determine the arsenic (As)…

A: Given data Concentration Absorbance 2 0.17 4 0.28 6 0.48 8 0.53 10 0.72

Q: Using the absorbance of [FeSCN]+2 at the wavelength of maximum absorption which you obtained in part…

A: Interpretation: To find the value of molar extinction coefficient at maximum absorption. Given Data:…

Q: Mercury intoxication could cause tremendous harmful impacts to human, particularly nervous system…

A: There are numerous instrumental techniques for quantitative and qualitative determination of the…

Q: II. Determination of Total Hardness of Water Source of water sample: Volume of water sample 22.00 mL…

A: Given that, Volume of EDTA solution consumed (V1)=14.06mL Molarity of standard EDTA solution used…

Q: Determination of the concentration of Zn(II) in a sample of river water was carried out by the…

Q: A 10 μL aqueous sample containing 1 attogram of Rb+ was injected into a graphite furnace atomic…

A: Given : Volume of solution = 10 μL = 0.01 mL (since 1 mL = 1000 μL )…

Q: The hardness of water is analyzed using titration. A liter of water sample from tap water found to…

Q: 20 ml aliquot of drinking water containing Fe(II) and Fe (III) is treated with hydroquinone to…

A: Given Values: The initial volume of the sample = 20 ml The final volume of the sample while…

Q: Please complete Table 2 and show the calculations for protein concentration and the concentration of…

A: A question based on tools in analytical chemistry that is to be accomplished.

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: Anionic surfactants in wastewater are measured spectrophotometrically as methylene blue active…

A: Given: Limit of surfactant content in Philippine class B water is 300 ppb

Q: Name the ionization techniques for solid and liquid samples.

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: use analytical separation and analyses to outline analytical separation method protocols that can be…

A: It has become an important need to prevent water pollution by removing all contaminants. Water is…

Q: A sample of water from the North Sea was analysed by ion-chromatography and the suifate…

A: On mixing two aqueous solutions, if a solid is separated out then the reaction is termed as…

Q: One common way to determine phosphorus is by mixing 12-molybdophosphate complex with ascorbie acid…

A: A graph based on Beer-Lambert law, which is to be accomplished.

Q: What are the advantages and disadvantages of using external standards in

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: Many rivers in Ghana are affected by illegal small-scale mining. Studies have revealed extremely…

A: Before the industrial and medical purpose, polluted air must be undergone through various steps of…

Q: Graphite furnace atomizers are renowned in Atomic Absorption Spectrometry for their exceptionally…

A: Atomic Absorption Spectrometry : It is a spectroanalytical technique to quantitatively determine…

Q: For each of the following statements, answer True or False and explain your answer briefly. It is…

A: Color test and micro-crystalline test are used to find the drug present in the system. Different…

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: A 0.2650 g rock sample of unknowm concentration was dissolved in HCI and diluted to 100.0 mL.…

A: The concentration of added standard Ca is calculated: [Ca] = C1 * V1 / V2 = 2.08 ug / mL * 5 mL /…

Q: Mass spectrometric measurements of zinc near the detection limit gave the following counts: 75.1,…

A: Solution - According to the question - Given - detection limit = 3s/m Formulas - ysample -yblank =…

Q: A forensic investigation was carried out to determine the amount of gun-shot residue on a small…

A: Concentration of solution is the amount of solute present per unit volume or mass of solution. In…

Concept explainers

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.

Question

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

1. Define: spectrochemical methods, spectroscopy, spectrometry, spectrometer, and spectrophotometer. 2. What is specific about the general analytical strategy for spectrochemical analysis methods comparedto instrumental analysis in general? 3. What is meant by the dual nature of light?
Discuss the application of any three of the following analytical methods for gold, copper and iron ore deposit evaluation which involve surface and subsurface geochemical sampling in a tropical environment. Neutron Activation Analysis (NAA) ICP-MS (Inductively Couple Plasma -Mass Spectrometry ES) ICP-ES (Inductively Couple Plasma Emission Spectrometry Electron microprobe analysis The Ion microprobe Fire assay XRF (X-Ray Fluorescence) AAS (Atomic Absorption Spectrophotometry)
If you are measuring manganese (Mn) absorption using AAS, which hollow cathode lamp would you select as your source and why?
The standard curve was made by spectrophotographic analysis of equilibrated iron(III) thiocyanate solutions of known concentration. You are asked to analyze a Fe(SCN)2+Fe(SCN)2+ solution with an unknown concentration and an absorbance value of 0.4150.415 . The slope-intercept form of the equation of the line is ?=4558.4?+0.0147y=4558.4⁢x+0.0147 . The unknown was analyzed on the same instrument as the standard curve solutions at the same temperature. What is the Fe3+Fe3+ concentration of the unknown solution?
what is the purpose and what is it for Spectrophotometric of a Cobalt Chloride Solution Analysis?
What is the major limitation of IR regarding the materials that can be used for instrumental components.
Seawater was spiked with phosphate to achieve a quantifiable range of phosphate concentrations by spectroscopy. What components of the spectrophotometer or sample preparation could be changed that would improve detection limits?
The determination of iron in wines was carried out by atomic absorption spectrophotometry, using the standard addition method. To do this, 10 mL of wine were placed in five 50 mL volumetric flasks; then 0, 5, 10, 15 and 20 mL of a 10 ppm iron standard solution were added to each of them. Next, they were gauged with distilled water and the absorbance was measured, obtaining the values of 0.040, 0.062, 0.081, 0.102 and 0.125 respectively. Calculate the regression parameters and obtain the iron concentration in the wine, in µg / mL.
Describe in details the quantitative spectrophotometric determination of a metal ion with a suitable example .
4. determine the amount in mg of the amount of Ag present from ICP mass digested: 1.0821g/L dilution of 10ml stock solution to 100ml volumetric flask X=0.98 (intensity)
Atomic absorption spectroscopy with graphite furnace atomization is an extremely sensitive technique. The standard addition method is used with this technique to determine the concentration of copper in urine. A 20.00 mL sample of urine is spiked with 1.00 mL of 300. ppb Cu²+ and this mixture gives a response of 0.168. Another 1.00 mL aliquot of 300. ppb Cu²+ is added to this mixture and gives a reading of 0.235Determine the concentration of copper in the urine sample
(Standard addition) Tooth enamel consists mainly of the mineral calcium hydroxyapatite, Ca10(PO4)6(OH)2. Trace elements in teeth of archeological specimen provide anthropologists with clues about diet and diseases of ancient people. Student at Dankook University measured the trace element strontium (Sr) in enamel from extracted wisdom teeth by atomic absorption spectroscopy. Solutions were prepared with a constant total volume of 10 mL containing 0.750 mg dissolved tooth enamel plus variable concentrations of added standard Sr. Added Standard Sr (ng/mL=ppb) 0 2.50 5.00 7.50 10.00 Emission Signal 28.0 34.3 42.8 51.5 58.6 (a) Make a graph showing the experimental data and the calculated straight line. (b) Find the concentration of Sr in the tooth ennamel in parts per million = μg/mL.