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Solutions, standardization

Solution "Standard geometry" is appropriate for this application (see Figure 19). The vessel volume is 2 m The trial vessel diameter is computed as follows ... [Pg.466]

Titrier-flasche,/. titration bottle (for feeding a buret), -fliissigkeit, /. titrating solution, standard solution, -gerate, n.pl. titrating apparatus, -methode, /. titration method, volumetric method, -saure, /. titrating acid, standard acid. [Pg.447]

For the determination of Pb, Zn and Mn in coal samples with solid sampling GF-AAS, calibration curves were prepared either from three appropriate NIST coal SRMs or solution standards. Identical results were obtained for Pb and Zn, while only solid SRMs gave correct results for Mn (Ah et al. 1989). [Pg.142]

Note isoxaflutole will degrade to RPA 202248 in solution. Standard solutions are stable for approximately 3 months when kept under refrigeration. A solution containing only isoxaflutole may be monitored for formation of RPA 202248 when maintained under the same storage conditions as the spiking solutions and standards used. [Pg.510]

Internal standard solution, Standard preparation, and Chromatographic system Prepare as directed in the Assay under Miconazole nitrate cream. [Pg.37]

Internal standard solution, standard preparation, and chromatographic system are prepared as directed in the assay under valproic acid capsules. [Pg.227]

Materials required Acetone solution or other polar solutions, standard saline solution of Isoton II, commercial products Multisizer II or 3 (Beckman Coulter Ltd, United Kingdom), Beckman Coulter Ltd or others similar technique. [Pg.207]

Basic procedure (ACL kit) Mix 2400 pL of ACL reagent 1 (diluter) with 100 pL of ACL reagent 2 (buffer) and 25 pL of photosensitizer reagent (luminol based). Start measurement after brief vortexing. Assayed solution (lipid extract) is added before addition of photosensitizer reagent. Volume of ACL reagent 1 is reduced by the volume of assayed solution. Standard substance a-tocopherol or Trolox. Duration of measurement 1 min. Measured parameter integral (area under the kinetic curve of PCL). [Pg.511]

Matrix effect is a phrase normally used to describe the effect of some portion of a sample matrix that causes erroneous assay results if care is not taken to avoid the problem or correct for it by some mechanism. The most common matrix effects are those that result in ion suppression and subsequent false negative results. Ion enhancement may lead to false positive results.126 127 Several reports about matrix effects include suggestions on what can cause them and how to avoid them.126-147 While various ways to detect matrix effects have been reported, Matuszewski et al.140 described a clear way to measure the matrix effect (ME) for an analyte, recovery (RE) from the extraction procedure, and overall process efficiency (PE) of a procedure. Their method is to prepare three sets of samples and assay them using the planned HPLC/MS/MS method. The first set is the neat solution standards diluted into the mobile phase before injection to obtain the A results. The second set is the analyte spiked into the blank plasma extract (after extraction) to obtain the B results. The third set is the analyte spiked into the blank plasma before the extraction step (C results) these samples are extracted and assayed along with the two other sets. The three data sets allow for the following calculations ... [Pg.220]

A standard stock solution of sirolimus was prepared in methanol. Controls and standard working solutions were prepared by spiking blank whole blood with the stock solution. Standards, controls, and patient whole blood (10 fi. ) were transferred to 1.5 mL polypropylene tubes, mixed with 40 fiL of 0.1M zinc sulfate solution, precipitated with 100 fiL of methanol containing the IS (2 fig/L), vor-texed vigorously for 5 sec, and centrifuged at 10,500 g for 5 min. Supernatants were collected and assayed. The injection volume was 20 fiL. The retention times of sirolimus and ascomycin were 0.93 and 0.89 min, respectively. The total run time was 2.5 min. Representative MRM chromatograms of a patient sample are shown in Figure 11.6. [Pg.308]

Technology (NIST), 15 762-763, 767 19 588 24 436. See also NIST Advanced Technology Program buffer solution standards, 14 25, 26 Crystal Data File, 26 424 standards, 15 742... [Pg.612]

Reference 170. The original values have been converted to a 1 molal ideal solution standard state (see reference 176)... [Pg.63]

Based on their use in industrial and domestic applications and abundance in environmental samples, six surfactants were selected by the participants of interlaboratory study I. Two different standard mixture solutions (standards II and 12) were distributed to all participants for the preparation of the calibration graphs. Standard II contained Arkopal N100 (NPEO), Marlamid DF 1218 (coconut fatty acid diethanolamide, CDEA) and Marlon A 350 (linear alkylbenzene sulfonate, LAS) at 1000 mg L-1 for each compound, while standard 12 contained Rewopol NOS 5 (nonylphenol ethoxylate sulfate, NPEO-SO4),... [Pg.539]

It is normally a very good approximation to assume that the titration process under study occurs under a pressure of 0.1 MPa. Therefore, the pressure corrections involved in the conversion of AT/icp to the standard state are usually negligible, and in many cases, it is licit to make A77icp = A/T p. When appropriate, other corrections, such as those related to solution standard states, can be applied as described by Vanderzee [129,130]. [Pg.162]

If the fused salt does not exist at the temperature of interest, one normally uses the infinitely dilute solute standard state. While these equations can easily be converted to that basis, the results are not immediately useful for two reasons ... [Pg.456]

Debye-Huckel effects are significant in the dilute range and are not considered, and (2) the usual composition scale for the solute standard state is molality rather than mole fraction. Both of these problems have been overcome, and the more complex relationships are being presented elsewhere (17). However, for most purposes, the virial coefficient equations for electrolytes are more convenient and have been widely used. Hence our primary presentation will be in those terms. [Pg.456]

Am, 90Sr, 239Pu, 240Pu, 137Cs, 129I, or 14C, which also lack solution standards. NIST has an active program to address the development of all of these radionuclide standards except 14C. [Pg.91]

The swabs present several problems. With swabs there are many steps that need to be validated to insure an accnrate result. The analyst must be able to quantitatively remove the analyte from the swab. The analyte is added to the swab as a solution, dried, and quantitatively extracted off for analysis. The preferable extraction solntion is the swabbing solvent. The HPLC mobile phase or a mobile phase component could be used, but would necessitate a dilution of the swabbing solution. Standard addition and recovery data of clarithromycin added to different lots of polyester fiber are present in Table 3. ... [Pg.405]

In a neutralization reaction, moles of H+ ions equal moles of OH ions. This relationship is the basis for the procedure called titration, which you will use to standardize a base solution. Standardizing a base means determining its molar concentration. You will then use your standardized base to determine the molar mass of an acid. To determine when the moles of H+ equal the moles of OH, you will monitor the pH of an acid solution as a solution of base is added slowly. The pH will rise suddenly when the concentrations of the two ions are equal (the equivalence point). [Pg.41]


See other pages where Solutions, standardization is mentioned: [Pg.533]    [Pg.35]    [Pg.321]    [Pg.481]    [Pg.65]    [Pg.89]    [Pg.334]    [Pg.353]    [Pg.662]    [Pg.215]    [Pg.38]    [Pg.246]    [Pg.802]    [Pg.71]    [Pg.309]    [Pg.308]    [Pg.169]    [Pg.66]    [Pg.126]    [Pg.129]    [Pg.66]    [Pg.136]    [Pg.387]    [Pg.161]    [Pg.61]    [Pg.252]   
See also in sourсe #XX -- [ Pg.195 , Pg.196 ]




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76 Standard Solutions (Technique

76 Standard Solutions (Technique Class

Activity coefficients and solution standard states

Ammonium Standard Solution

Aniline standard solution)

Aqueous solution standard thermodynamic properties

Aqueous solutions standard solution

Aqueous solutions standard state

Aspirin standard solution

B Standard Solutions

Barium Standard Solution

Buffer Solutions, Standard

Buffer solutions standard reference

Calcium standard solution

Calibration standard solutions

Chloride standard solution

Chromium salts, standardization procedure for solutions

Chromium standard solution

Concentration Determination through Standard Solution Addition

Concentration standard solution

Conductivity, electrical standard solutions

Determination of lead with standard potassium dichromate solution

Determination of sulphate with standard lead nitrate solution

Diazomethane standardized solution

Experiment 6 Standardization of a Solution

Fluoride standard solution

Fructose standard solution

Gibbs free standard energy solution acidity

Glucose standard solution

Hydrochloric acid standard solution

Ideal solution standard states for

Ideal solution, standard chemical potential

Ideal solution, standard chemical potential solute

Iodine solution, standardization

Iron Standard Solution

Magnesium Standard Solution

Making Standard Solutions

Manganese standard solution

Measurement Against a Standard in Solution

Methyllithium, ether solution standardizing

Multi-element standard solutions

NIST standard-reference solutions

Nickel Standard Solution

Nickel solution concentration limits, standard

Nitrate standard solution

Nitric oxide electrochemical sensors NO standard solution

Nonaqueous Solutions potential standards

Phosphate standard solution

Phosphorus standard solution

Potassium dichromate standard solution

Potassium iodate standard solution

Potassium permanganate solution standardization

Potential for Solute Purification Using Standard Extraction

Preparation of internal standard solutions

Preparation of standard solutions

Primary standard solutions

Procedure 2.3.a Preparation of Co2(aq) Standard Solutions

Proficiency testing standard solutions

Quantification of Analytical Data via Calibration Curves in Mass Spectrometry Using Certified Reference Materials or Defined Standard Solutions

Real solutions, reference and standard states

Reference materials standard solutions

STANDARD SOLUTIONS (BUFFERS) 1 Characteristics

Secondary standard solutions

Silver nitrate standard solution

Sodium arsenite. Standard solution

Sodium hydroxide standard solution

Sodium hydroxide standardized solution

Sodium standard solution

Sodium thiosulfate solutions standardization

Sodium—continued standard solution)

Solute standard state

Solutes, thermodynamic standard state

Solution chemistry standard enthalpies

Solution volumetric standard

Solutions and Standards

Solutions standard solution

Solutions standard solution

Solutions standard state

Standard EDTA solutions

Standard Electrode (Reduction) Potentials in Aqueous Solution at

Standard Electrode Potentials Aqueous Solutions

Standard Electrode Potentials for Aqueous Solutions

Standard Gibbs Function for Formation of Solid Solute in Aqueous Solution

Standard Gibbs energy of solution

Standard KC1 Solutions for Calibrating

Standard KC1 Solutions for Calibrating Conductivity Cells

Standard Reduction Potentials in Aqueous Solution at

Standard Salt Solutions for Humidity

Standard Salt Solutions for Humidity Calibration

Standard Silica Solutions

Standard Solutions of Acids, Bases, and

Standard Solutions of Acids, Bases, and Salts

Standard Solutions of Oxidation and

Standard Solutions of Oxidation and Reduction Reagents

Standard acid solution

Standard acid solution preparation

Standard analyte solutions

Standard base solution

Standard base solution preparation

Standard chemical potential, solute

Standard enthalpy of solution

Standard entropy of solution

Standard for thiosulfate solutions

Standard free energy of solution

Standard integral heat of solution

Standard metal solutions

Standard molybdenum solution

Standard of solutions

Standard potentials, electrolyte solutions

Standard reduction potentials in aqueous solutions

Standard salt solutions

Standard solution

Standard solution

Standard solution diluting

Standard solution enthalpy

Standard solutions for

Standard solutions preparation

Standard solutions preparing

Standard solutions,stability

Standard state dilute solutions

Standard state for aqueous solutes

Standard state for aqueous solutions

Standard state infinitely dilute solution

Standard state of a solution

Standard state of solutes

Standard state of solutions

Standard states for solutions

Standard stock solutions

Standard vapor equilibria, ideal solutions

Standardization Using a Standard Solution

Standardization of a solution

Standardization of solutions

Standardization of the EGTA solution

Standardization of the thiosulphate solution

Standardized Solutions

Standardized Solutions

Standardizing a Base Solution by Titration

Standards Standard solutions

Standards and standard solutions

Stoichiometric calculations standard solution

Suggested pH of Standard Solutions

Sulfuric acid , primary standard solutions

Thiocyanogen solution standardization

Titanous chloride standard solution)

Titrimetric solutions, standard

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