The control of amount of nitrates in colloidal solution of the NPs after each stage of centrifugation was performed by identification test using diphenylamine
Burton, "A study of the conditions and mechanism of the diphenylamine
reaction for the colorimetric estimation of deoxyribonucleic acid," Biochemical Journal, vol.
The nucleic acid content was determined by diphenylamine
method, using DNA as standard .
In this procedure, carbon is oxidized by acidified dichromate and excess dichromate is back-titrated with ferrous iron with diphenylamine
Atrazine (1-chloro-3-ethylamino-5-isopropylamino-2,4,6-triazine, CAS 1912-24-9) was purchased from Chem Service, Pennsylvania, USA, and triclosan [5-chloro-2-(2,4-dichlorophenoxy)phenol, CAS 3380-34-5], analytical grade diphenylamine
, chlorobenzene, and ethyl acetate were obtained from Sigma Aldrich (Johannesburg, South Africa) while the HPLC grade solvents--methanol, ethanol, toluene, and chloroform--were obtained from Riedel-de Haen (Seelze, Germany); analytical grade NaCl was obtained from ACE (Johannesburg South Africa).
Developed plates were visualized in a Spectroline ENF 260C/FE UV lamp (Spectronics Corp., Westbury, NY) and with a carbohydrate-specific reagent made of 1 g diphenylamine
in 180 mL EtOH, 100 mL glacial HOAc, and 3 mL [H.sub.2]S[O.sub.4].
The samples were then studied according to modified version of diphenylamine
protocol by Burton [15,16].
Besides the technologies described above, recent studies have indicated that controlled atmosphere (SUDHAKAR; GOPALAKRISHNA, 2009), pre-fumigated with nitric oxide (ZAHARAH; SINGH, 2011), the treatment with [H.sub.2] [O.sub.2] (ZHAO et al., 2010) and the application of vegetal regulators, such as, methyl jasmonate, diphenylamine
(TASNEEM et al., 2004) and salicylic acid (BARMAN; ASREY, 2014) are able to give the mangoes higher tolerance to low temperature.
clothianidin, imidacloprid, thiametoxam), diphenylamine
(DPA), carbendazim, and thousands of others are governed by the use of maximum residue limits (MRLs).
Facile synthesis and characterization of the copolymers and their pure nanoparticles from aniline with sulfonic diphenylamine
. Journal of Polymer Science Part A Polymer Chemistry, 42: 3380-3394.
is mainly released to the environment through chemical industry during production formulation of heating oil lubricant additive and plant protection product and processing.
Acetic acid, acetone, aniline, n-butanol, diphenylamine
, ethanol, phosphoric acid, pyridine and silica gel TLC plates 20 cm A- 20 cm were obtained from Merck AG (Darmstadt, Germany).