Search
- Filter Results
- Location
- Classification
- Include attachments
- https://chem.libretexts.org/Ancillary_Materials/Worksheets/Worksheets%3A_Analytical_Chemistry_II/Stock_Solution_and_Calibration_Standard_PreparationWhen studying a PPCP like fluoxetine we generally prepare a relatively large quantity (25 - 100 mL) of stock (standard) solution of the analyte from which calibration standards and spiked samples can ...When studying a PPCP like fluoxetine we generally prepare a relatively large quantity (25 - 100 mL) of stock (standard) solution of the analyte from which calibration standards and spiked samples can be prepared from. In addition to the steps to take to prepare such a standard, please provide a specific example with sample calculations and the final concentration of the fluoxetine solution that is produced.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/16%3A_Appendix/16.02%3A_Propagation_of_UncertaintyThe text discusses the propagation of uncertainty in the context of chemical measurements, emphasizing the various sources of uncertainty beyond just measurement error, such as purity, temperature eff...The text discusses the propagation of uncertainty in the context of chemical measurements, emphasizing the various sources of uncertainty beyond just measurement error, such as purity, temperature effects, and repeatability. Using the standardization of an NaOH solution via titration of KHP as an example, the text details the identification and estimation of uncertainties for different components using methods like cause-and-effect diagrams and converting tolerance ranges to standard deviations.
- https://chem.libretexts.org/Courses/Lakehead_University/Analytical_I/5%3A_Standardizing_Analytical_Methods/5.3%3A_Determining_the_SensitivityTo standardize an analytical method we also must determine the value of kA . In principle, it should be possible to derive the value of kA for any analytical method by considering the chemi...To standardize an analytical method we also must determine the value of kA . In principle, it should be possible to derive the value of kA for any analytical method by considering the chemical and physical processes generating the signal. Unfortunately, such calculations are not feasible when we lack a sufficiently developed theoretical model of the physical processes, or are not useful because of nonideal chemical behavior.
- https://chem.libretexts.org/Ancillary_Materials/Worksheets/Worksheets%3A_Analytical_Chemistry_II/StandardizationA shipboard flow injection analytical procedure for measuring Fe 2+ in sea water is based on chemiluminescence from the dye brilliant sulfoflavin in the presence of Fe 2+ and H 2 O 2 . Data from a ser...A shipboard flow injection analytical procedure for measuring Fe 2+ in sea water is based on chemiluminescence from the dye brilliant sulfoflavin in the presence of Fe 2+ and H 2 O 2 . Data from a series of standard additions is shown below. The following data were obtained by adding the same amount of internal standard to a fixed volume of solutions containing known amounts of analyte and to samples of unknown analyte concentration.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/05%3A_Standardizing_Analytical_Methods/5.05%3A_Compensating_for_the_Reagent_BlankThe page discusses the importance of selecting an appropriate reagent blank to correct signals in analytical methods. It explores different approaches to blank correction, including calibration and re...The page discusses the importance of selecting an appropriate reagent blank to correct signals in analytical methods. It explores different approaches to blank correction, including calibration and reagent blanks. The study highlights that different methods yield varying results, emphasizing the significance of a proper blank choice.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/01%3A_Introduction_to_Analytical_Chemistry/1.02%3A_The_Analytical_PerspectiveHaving noted that each area of chemistry brings a unique perspective to the study of chemistry, let???s ask a second deceptively simple question: What is the analytical perspective? Many analytical ch...Having noted that each area of chemistry brings a unique perspective to the study of chemistry, let???s ask a second deceptively simple question: What is the analytical perspective? Many analytical chemists describe this perspective as an analytical approach to solving problems.
- https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Analytical_Chemistry_2.1_(Harvey)/05%3A_Standardizing_Analytical_Methods/5.01%3A_Analytical_SignalsThis page discusses the standardization of analytical methods using standards containing known analyte amounts. It emphasizes the importance of reagent and glassware quality. The text explains primary...This page discusses the standardization of analytical methods using standards containing known analyte amounts. It emphasizes the importance of reagent and glassware quality. The text explains primary standards, like K???Cr???O???, and secondary standards, like NaOH, and mentions the role of solvents. It also covers preparing standard solutions through direct transfer or serial dilution, noting potential errors.
- https://chem.libretexts.org/Courses/Los_Angeles_Trade_Technical_College/Analytical_Chemistry/2%3A_Analytical_Chemistry_2.0_(Harvey)/06%3A_Standardizing_Analytical_Methods/6.3%3A_Determining_the_SensitivityTo standardize an analytical method we also must determine the value of kA . In principle, it should be possible to derive the value of kA for any analytical method by considering the chemi...To standardize an analytical method we also must determine the value of kA . In principle, it should be possible to derive the value of kA for any analytical method by considering the chemical and physical processes generating the signal. Unfortunately, such calculations are not feasible when we lack a sufficiently developed theoretical model of the physical processes, or are not useful because of nonideal chemical behavior.
