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[PDF] Top 20 Flow-injection spectrophotometric determination of glyphosate in commercial formulations of herbicides.

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Flow-injection spectrophotometric determination of glyphosate in commercial formulations of herbicides.

Flow-injection spectrophotometric determination of glyphosate in commercial formulations of herbicides.

... Neste ensaio, o gráfico de Pareto obtido (Figura 4) mostra que sob esta condição de análise, o reator é a variável que menos in- fluencia na reação, sendo, portanto, fixada no nível mais baixo (-1). Para a ... See full document

5

Flow injection spectrophotometric determination of vitamin B6 (pyridoxine) in pharmaceutical formulations.

Flow injection spectrophotometric determination of vitamin B6 (pyridoxine) in pharmaceutical formulations.

... sinais transientes obtidos para aquelas soluções de referência de cloridrato de piridoxina e soluções de amostras são apresen- tados na Figura 4. Figura 4[r] ... See full document

5

Spectrophotometric determination of metamizol in pharmaceutical formulations by flow injection triiodide generation.

Spectrophotometric determination of metamizol in pharmaceutical formulations by flow injection triiodide generation.

... SPECTROPHOTOMETRIC DETERMINATION OF METAMIZOL IN PHARMACEUTICAL FORMULATIONS BY FLOW INJECTION TRIIODIDE ...A flow injection spectrophotometric ... See full document

5

Spectrophotometric determination of vitamin B2 (riboflavin) in pharmaceutical formulations using flow injection analysis.

Spectrophotometric determination of vitamin B2 (riboflavin) in pharmaceutical formulations using flow injection analysis.

... A freqüência analítica foi 42 h -1 e os sinais transientes em triplicata obtidos para as soluções de referência de riboflavina e aqueles em triplicata para as solu- ções de amostras são [r] ... See full document

4

Flow injection spectrophotometric determination of paracetamol (acetaminophen) in pharmaceutical formulations.

Flow injection spectrophotometric determination of paracetamol (acetaminophen) in pharmaceutical formulations.

... Os estudos realizados neste trabalho evidenciaram a viabilidade do emprego do método espectrofotométrico em fluxo para determi- nação de paracetamol (acetaminofeno) após sua reação de ox[r] ... See full document

5

J. Braz. Chem. Soc.  vol.18 número6

J. Braz. Chem. Soc. vol.18 número6

... precise flow-injection spectrophotometric procedure is reported for the determination of captopril in pharmaceutical ...formulations. In this procedure, captopril ... See full document

5

Enzimatic determination of dopamine in pharmaceutical formulations using a flow injection analysis system with avocado (Persea americana) crude extract.

Enzimatic determination of dopamine in pharmaceutical formulations using a flow injection analysis system with avocado (Persea americana) crude extract.

... ENZIMATIC DETERMINATION OF DOPAMINE IN PHARMACEUTICAL FORMULATIONS USING A FLOW INJECTION ANALYSIS SYSTEM WITH AVOCADO (Persea americana) CRUDE ...EXTRACT. In this work, a ... See full document

5

Eclet. Quím.  vol.33 número2

Eclet. Quím. vol.33 número2

... A spectrophotometric flow injection method for the determination of paracetamol in pharma- ceutical formulations is ...oxidation of paracetamol by sodium ... See full document

7

J. Braz. Chem. Soc.  vol.22 número2

J. Braz. Chem. Soc. vol.22 número2

... plot of the generated signal was displayed on the microcomputer screen to allow its visualization in the real ...6 in order to empty the chamber, thus beginning the next analytical ... See full document

7

Simultaneous spectrophotometric determination of paracetamol and ibuprofen in pharmaceutical formulations by multivariate calibration.

Simultaneous spectrophotometric determination of paracetamol and ibuprofen in pharmaceutical formulations by multivariate calibration.

... O melhor modelo PLS foi selecionado com três variáveis laten- tes através de um procedimento de validação cruzada “leave-one- out”. Este modelo explicou 99,99% da variância total do bloco X (variáveis independentes) e ... See full document

5

Assessment Of Some Acceleration Schemes In The Solution Of Systems Of Linear Equations.

Assessment Of Some Acceleration Schemes In The Solution Of Systems Of Linear Equations.

... systems of linear equations Ax = b, where A, b are known matrices and x is a vector of ...Systems of linear equations play a prominent role in economics, engineering, physics, chemistry, ... See full document

8

Braz. J. Pharm. Sci.  vol.51 número1

Braz. J. Pharm. Sci. vol.51 número1

... reported spectrophotometric methods suffer from one or the other disadvantage such as poor sensitivity and narrow linear range (Michael, Kenneth, Anthony, 1999), tedious and time-consuming steps like ... See full document

10

J. Braz. Chem. Soc.  vol.16 número3B

J. Braz. Chem. Soc. vol.16 número3B

... the determination of lead by hydride generation ...direct determination of lead in water samples without pre-concentration ...coupling of flow- injection system to ... See full document

6

Spectrophotometric aluminium determination in high salts concentrations solution used in hemodyalisis emploing preconcentration in flow injection.

Spectrophotometric aluminium determination in high salts concentrations solution used in hemodyalisis emploing preconcentration in flow injection.

... [r] ... See full document

4

J. Braz. Chem. Soc.  vol.26 número10

J. Braz. Chem. Soc. vol.26 número10

... Four commercial pharmaceutical samples of PCT and COD combination formulations were purchased in a local drugstore (A and B: 500 mg of PCT and 30 mg of COD per tablet; C and D: ... See full document

10

Development of a micro-heater for flow analysis systems: spectrophotometric determination of manganese in plant digest.

Development of a micro-heater for flow analysis systems: spectrophotometric determination of manganese in plant digest.

... diâmetro in- terno, encapado com tubo de espaguete térmico usado para isola- mento em fiação elétrica (tubo termocontráctil), o qual apresenta alta resistência ao ataque ... See full document

5

Evaluation of susceptibility of the ZRE1 alloy to hot cracking in conditions of forced strain

Evaluation of susceptibility of the ZRE1 alloy to hot cracking in conditions of forced strain

... cracking in the high-temperature brittleness range, we have determined the changes of temperature of individual points when the alloy was cooled down from the solidus ...specimens: in the ... See full document

6

Coupling a gas diffusion cell to a sequential injection system for spectrophotometric determination of sulfide.

Coupling a gas diffusion cell to a sequential injection system for spectrophotometric determination of sulfide.

... SEQUENTIAL INJECTION SYSTEM FOR SPECTROPHOTOMETRIC DETERMINATION OF ...sequential injection system is ...rotary injection valves or peristaltic pumps, keeping the original ... See full document

5

J. Braz. Chem. Soc.  vol.21 número4

J. Braz. Chem. Soc. vol.21 número4

... Ni in spiked EPO samples irradiated under the optimized conditions (Table 2) by using a 400 W radiation ...results in Table 3 show that the Hg lamp power inluences the decomposition eficiency of ... See full document

9

Braz. J. Pharm. Sci.  vol.52 número3

Braz. J. Pharm. Sci. vol.52 número3

... detected in the receptor ...structures in SC, afecting drug ...transition of substances with high partition coefficient and limited water ...release of ACV only in skin tissue ... See full document

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