Question

The standard addition method is used when a. the sample matrix is very complicated b. something...

The standard addition method is used when

a. the sample matrix is very complicated

b. something in the sample interferes with the analysis of the analyte

c. the instrument is unstable over time

d. the detection limit for the analyte is too high

The answer is B, please explain why and why other answers are wrong!

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The method of standard additions is a quantitative analysis method, which is often used when the sample of interest has multiple components that result in matrix effects, where the additional components may either reduce or enhance the analyte absorbance signal i.e when something in the sample interferes the analysis.

That results in significant errors in the analysis results of the analyte.

Iin this method, the remaining options are not giving the sense of definition or method and they are not the MAIN PURPOSE to use these methods hence, the B) is more appropritae.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1) When we fit a model to data, which is typically larger? a) Test Error b)...
1) When we fit a model to data, which is typically larger? a) Test Error b) Training Error 2) What are reasons why test error could be LESS than training error? (Pick all that applies) a) By chance, the test set has easier cases than the training set. b) The model is highly complex, so training error systematically overestimates test error c) The model is not very complex, so training error systematically overestimates test error 3) Suppose we want to...
The goal of statistics is to use data to understand something about the world. To obtain...
The goal of statistics is to use data to understand something about the world. To obtain useful results, a scientific approach should be followed. The basic approach can be summarized into a few steps. Write a question that can be answered by collecting data. Determine what variables to measure and how to collect a data sample. Analyze the data and create appropriate summaries. Create a report of the results, drawing conclusions or inferences where appropriate. For example, suppose you are...
12. 5Whys - Unbreakable Rules 1 point possible (graded) Q12- Which of the following is NOT...
12. 5Whys - Unbreakable Rules 1 point possible (graded) Q12- Which of the following is NOT an unbreakable rule of the 5Why analysis? A- Data and Facts only B- Collect as many whys as possible, even if they have meaningless answers C- Clear and Agreed Problem Statement D- Direct Interrelation Chain between each Why E- Correct Team Composition 13. - 15. 5Whys - CPU Utilization 3 points possible (graded) Q13- You are given the following 5Why analysis: 1. Why is...
Need Answers and why: 12. _____ is an example of a monetary incentive used to control...
Need Answers and why: 12. _____ is an example of a monetary incentive used to control a manager's tendency to shirk and waste resources. a. A recognition program b. Job enrichment c. A promotion 13. Which of the following is true of participative budgeting? a. It imposes budgets on subordinate managers. b. It fosters a sense of responsibility among managers. d. It discourages creativity. 14. In March, Burlywood had the following results: Production: Units in process, March 1, 80% complete...
When is a hypothesis considered scientific? a. when it is based on something other than observation...
When is a hypothesis considered scientific? a. when it is based on something other than observation b. when it can be tested and is refutable c. when it relies on anecdotal evidence d. when it relies on mystical explanations e. All hypotheses are considered scientific until experiments determine otherwise. 3. Of the following, which is the earliest step in the scientific process? a. generating a hypothesis b. analyzing data c. conducting an experiment d. drawing a conclusion e. developing a...
1. Answer EITHER part (a) OR part (b). (a) A gas scrubber on an oilrig discharged...
1. Answer EITHER part (a) OR part (b). (a) A gas scrubber on an oilrig discharged gas periodically such that an accumulation of hydrocarbon gas nearby had occurred. A contractor welder was dispatched to a job immediately adjacent to the area and it being a shift change and personnel unavailable temporarily, the welder decided to commence welding. As a consequence, an incident occurred. Describe briefly: (i) what you imagine was the incident including any hazards existing prior to or during...
This case assignment draws from the Business Information Systems and the Systems Acquisition and Development modules...
This case assignment draws from the Business Information Systems and the Systems Acquisition and Development modules (Chapters 5 to 8). Its purpose is to provide you with experience in analyzing organizational information systems, making recommendations to improve these systems, and formulating a plan to execute on your recommendations. 1. Recommend one of your alternatives that is the best solution to the main issue and justify your recommendation. Your justification should be based on the key decision criteria and you must...
SOME DRAWBACK OF BLACK-SCHOLES Briefly discuss here some difficulties associated with the Black Scholes formula, which...
SOME DRAWBACK OF BLACK-SCHOLES Briefly discuss here some difficulties associated with the Black Scholes formula, which is widely used to calculate the price of an option. For example, consider a European call option for a stock. This is the right to buy a specific number of shares of a specific stock on a specific date in the future, at a specific price (the exercise price, also called the strike price). If all these quantities are fixed, the question becomes: what...
Project Title: Development of pre-employment selection testing for entry-level Retail Salespersons in retail clothing stores. Scope...
Project Title: Development of pre-employment selection testing for entry-level Retail Salespersons in retail clothing stores. Scope of Project: The entry-level Retail Salesperson position is responsible for selling the popular “Big Turtle” clothing and merchandise at their retail stores. There are approximately 50 retail stores located throughout the Southeast region, employing over 600 Retail Salespersons. Currently, turnover for this title is averaging 50% annually. Big Turtle Clothiers, Inc. (BTC) also anticipates opening 10 new stores per year for the next 5...
9. What can be taken off a credit report? A. Only Inaccurate items but not public...
9. What can be taken off a credit report? A. Only Inaccurate items but not public records B. Any inaccurate, incomplete, unverifiable accounts, old personal information and public records C. All information can come off at will D. Both A and B E. None above 10. How can one establish credit? A. Apply for a credit card B. Apply for a secured credit card C. Apply for a secured bank loan D. Become an authorized users in someone’s else credit...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT