224. A Sampling and Analytical Method for the Simultaneous Determination of Multiple Organonitrogen Pesticides in Air

1999 ◽  
Author(s):  
E.R. Kennedy ◽  
J.J. Lin ◽  
J.M. Reynolds ◽  
J.B. Perkins
Keyword(s):  
Simultaneous Determination ◽  
Analytical Method ◽  
Organonitrogen Pesticides

A Sampling and Analytical Method for the Simultaneous Determination of Multiple Organonitrogen Pesticides in Air

AIHAJ ◽  
1997 ◽  
Vol 58 (10) ◽  
pp. 720-725 ◽  
Author(s):  
Eugene R. Kennedy ◽  
Jun-Jie Lin ◽  
John M. Reynolds ◽  
James B. Perkins
Keyword(s):  
Simultaneous Determination ◽  
Analytical Method ◽  
Organonitrogen Pesticides

Development of a SALLE-HPLC-FLD Analytical Method for the Simultaneous Determination of Ten Biogenic Amines in Cheese

2020 ◽  
Vol 13 (5) ◽  
pp. 1088-1098 ◽  
Author(s):  
Rui Miguel Ramos ◽  
Pedro Francisco Brandão ◽  
José António Rodrigues
Keyword(s):  
Biogenic Amines ◽  
Simultaneous Determination ◽  
Analytical Method

Green analytical method for simultaneous determination of salinity, carbonate and ammoniacal nitrogen in waters using flow injection coupled dual-channel C4D

Talanta ◽  
2018 ◽  
Vol 189 ◽  
pp. 196-204 ◽  
Author(s):  
Sumonmarn Chaneam ◽  
Prawpan Inpota ◽  
Suttipong Saisarai ◽  
Prapin Wilairat ◽  
Nuanlaor Ratanawimarnwong ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Flow Injection ◽  
Analytical Method ◽  
Ammoniacal Nitrogen ◽  
Dual Channel

scholarly journals Optimization and Validation of HPLC Based Analytical Method for Simultaneous Determination of Thiamethoxm Residues

2015 ◽  
Vol 27 (11) ◽  
pp. 4054-4058
Author(s):  
Sumia Akram ◽  
Bushra Sultana ◽  
Muhammad Rafiq Aasi ◽  
Shaukat Ali ◽  
Muhammad Shahid
Keyword(s):  
Simultaneous Determination ◽  
Analytical Method

Validation of an analytical method for the simultaneous determination of 16 drugs and metabolites in hair in the context of driving license granting

2020 ◽  
Vol 315 ◽  
pp. 110428
Author(s):  
Victoria Vendramini Müller ◽  
Roberta Zilles Hahn ◽  
Lilian de Lima Feltraco Lizot ◽  
Anelise Schneider ◽  
Cristiane Pereira da Silva ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Analytical Method ◽  
Driving License ◽  
Drugs And Metabolites

scholarly journals Development and Validation of a New HPLC-UV Method for the Simultaneous Determination of Triclabendazole and Ivermectin B1a in a Pharmaceutical Formulation

2010 ◽  
Vol 93 (6) ◽  
pp. 1868-1873 ◽  
Author(s):  
Maher Shurbaji ◽  
Mohamad H Abu Al Rub ◽  
Munib M Saket ◽  
Ali M Qaisi ◽  
Maher L Salim ◽  
...  
Keyword(s):  
Simultaneous Determination ◽  
Analytical Method ◽  
Significant Variation ◽  
Rp Hplc ◽  
System Suitability ◽  
Experimental Parameters ◽  
Development And Validation ◽  
Interday Precision ◽  
Peak Purity

Abstract A rapid, simple, and sensitive RP-HPLC analytical method was developed for the simultaneous determination of triclabendazole and ivermectin in combination using a C18 RP column. The mobile phase was acetonitrilemethanolwateracetic acid (56 36 7.5 0.5, v/v/v/v) at a pH of 4.35 and flow rate of 1.0 mL/min. A 245 nm UV detection wavelength was used. Complete validation, including linearity, accuracy, recovery, LOD, LOQ, precision, robustness, stability, and peak purity, was performed. The calibration curve was linear over the range 50.09150.26 g/mL for triclabendazole with r = 0.9999 and 27.0181.02 g/mL for ivermectin with r = 0.9999. Calculated LOD and LOQ for triclabendazole were 0.03 and 0.08 g/mL, respectively, and for ivermectin 0.07 and 0.20 g/mL, respectively. The intraday precision obtained was 98.71 with RSD of 0.87 for triclabendazole and 100.79 with RSD 0.73 for ivermectin. The interday precision obtained was 99.51 with RSD of 0.35 for triclabendazole and 100.55 with RSD of 0.59 for ivermectin. Robustness was also studied, and there was no significant variation of the system suitability of the analytical method with small changes in experimental parameters.

scholarly journals Multiwavelength Spectral Correction for the Simultaneous Determination of Cu(II), Fe(II), and Zn(II) with 1-(5-Bromo-2-Pyridylazo)-2-Naphthol-6-Sulfonic Acid

2001 ◽  
Vol 84 (1) ◽  
pp. 532-536 ◽  
Author(s):  
Hong-Wen Gao
Keyword(s):  
Simultaneous Determination ◽  
Analytical Method ◽  
Sulfonic Acid ◽  
Free Ligand ◽  
Spectral Correction ◽  
Relative Standard ◽  
Zn And Cu In ◽  
Matrix Formula ◽  
Standard Deviations

Abstract A new analytical method is described for the simultaneous determination of various components by multiwavelength spectrophotometry. Because of the influence of the free ligand and various complexes on spectrophotometric absorption, the spectral correction principle was used to establish the calculation matrix formula. The 3 sensitive reactions of Cu(II), Fe(II), and Zn(II), with 1-(5-bromo-2-pyridylazo)-2-naphthol-6-sulfonic acid were studied at pH 10.5. In analyses of fortified samples, the recoveries of Fe, Zn, and Cu were between 93.0 and 103%, 87.0 and 108%, and 92.5 and 108%, respectively; the relative standard deviations for 5 determinations of Fe, Zn, and Cu in unfortified ore were 3.6, 5.8, and 4.5%, respectively.

Analytical Method Development and Validation for Telmisartan, Chlorthalidone and Amlodipine by UV- Spectroscopic Method.

2021 ◽  
pp. 6049-6054
Author(s):  
Rutuja M. Sanap ◽  
Sarika R. Wavhale ◽  
Vaibhavi V. Kunjir ◽  
Rajkumar V. Shete
Keyword(s):  
Simultaneous Determination ◽  
Analytical Method ◽  
Dosage Form ◽  
Method Development ◽  
Correction Method ◽  
Absorption Correction ◽  
Method Development And Validation ◽  
Development And Validation ◽  
Tablet Dosage

A simple, sensitive and accurate UV- spectrophotometric absorption correction method has been developed for simultaneous determination of Telmisartan, Amlodipine and Chlorthalidone in combined tablet dosage form. Analytical method development and validation plays important role in the discovery manufacture of pharmaceuticals and development. In this paper, absorption correction method is used for multi-component analysis. The wavelengths selected for the analysis were 311nm for Telmisartan, 228nm for Chlorthalidone and 253nm for Amlodipine. Beer’s law obeyed the concentration range of 2-10 µg /ml, 2-10 µg /ml and 5-25 µg/ ml for Telmisartan, Amlodipine and Chlorthalidone. Methanol is used as a solvent. The accuracy of the method was assessed by recovery studies and was found between the range of 100% to 110% for Telmisartan, 85% to 110% for Amlodipine and 85% to 105% Chlorthalidone. The % RSD value was found to be less than 2. Thus, the method was simple, precise, economic, rapid, accurate and can be successfully applied for simultaneous determination of Telmisartan, Amlodipine and Chlorthalidone in combined tablet dosage form.

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