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Control plant (without any treatment) and CuCl2 control (plants sprayed with CuCl2 just before harvesting) were also raised parallel with treatment plant, harvested, processed in the same age as treatment one.
The methanolic solutions of Ni, Co and Cu metal salts [Ni(OAc)2.4H2O, CAdegCl2.6H2O, CuCl2.2H2O] were added in 1:2 (M:L) molar ratio to a hot stirring methanolic solution of ligand L under reflux for 45 min.
Stock solution of 10,000 mg L[?] 1 Cu was prepared using analytical grade cupric chloride (CuCl2.2H2O) in 1 L distilled water.
Of these tested substances, NaCl, KCl, glucose, sucrose, citric acid, NaH2PO4, CaSO4, Cr(VI), NaIO4, CaCl2, CuCl2, KI and MgCl2 exhibited lower fluorescence response as compared to BH, while SDS, isatin and FeCl2 had a little obvious effect on the fluorescence recovery ratio (I-I0)/I0.
Pure chloride compounds (Aldrich, USA) of Cu (CuCl2. 2H2O), Cd (CdCl2.
Copper complexes were prepared from CuCl2.2H2O and these ligands, the metal ligand ratio was found to be 1:1 and found to be bidentate.
Extra pure chloride of copper chloride (CuCl2. 6H2O) was used to prepare stock solution of required metal dilution.
Actually, these methods often use different Lewis acid catalysts such as FeCl3*H2O, [7d] SnCl2,  CuCl2,[1e] AlCl3/ZnCl2-SiO2[1k] or Ceric ammonium nitrate.[1b]
Solution having trace elements was of following composition:ZnSO4.7HH2O (10.0),MnCl2.4H2O (3.0), CoCl2.6H2O (1.0), NiCl2.6H2O (2.0), NO2MoO4.2H2O (3.0), H3BO3 (3.0) and CuCl2.2H2O (1.0) mg L-1.
NaBH4 in the presence of NiCl2 [10,11], CoCl2 [12,13], CuCl2 , ZrCl4 , SnCl2 , BiCl3 , SbF3 , CuSO4 , Raney nickel , Ni2B , nickel complexes of o-aminothiophenol Schiff base  and charcoal  are some of the combination systems which have been reported for reduction of nitro compounds to their corresponding amines.
2-Arylquinazolin-4(3H)-ones 1-25 were synthesized by refluxing anthranilamide (1 eq.), different benzaldehydes (1.1 eq.) and CuCl2.2H2O (4 eq.) in ethanol (15 mL) for 16 h.
Murexide was used as an indicator for CuCl2.2H2O, CoCl2.6H2O and NiCl2.2H2O solutions (1.7x102 mol L1 each).
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