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121. The usual counter - ions are sodium, potassium and ammonium.

122. The ammonia comes from firedamp fermentation has been determined by ammonium - gas - sensitive electrodes with satisfactory results.

123. According to soil fertility and soil structure in the loess plateau, the experiment of fertilizer amount was carried out with ammonium nitrate and calcium superphosphate.

124. Quaternary ammonium salt of chitosan was synthesized starting from chitosan, triethylamine and ethyl chloroacetate by ester exchange reaction.

125. The organic derivative of bentonite was prepared by covering artificial Na - bentonite with hexadecyl trimethyl ammonium bromide.

126. At last , it titrates with ferrous ammonium sulfate, using the sodium diphenylamine sulfonate as a catalyst.

127. Any of various preparations of ammonium carbonate and perfume, sniffed as a restorative or stimulant especially to relieve faintness and headache.

128. Crystalline neodymium carbonate was prepared by aging amorphous neodymium carbonate, which was formed by the reaction of neodymium chloride and ammonium bicarbonate, at elevated temperature.

129. Real silk can increase its dye adsorption in its dyeing with acid dyes in the presence of Bola diquaternary ammonium salt electrolyte.

130. Tetrabutyl ammonium bromide and sodium methoxide were used as catalyst for the reaction.

131. The yield of ammonium cerium nitrate is more than 85%, and the purity of ammonium cerium nitrate with orange red color is larger than 99%.

132. Ammonium sulfate deposition were used to get kidney bean phytohemagglutinin.

133. Ambient conditions that include toxic gases such as hydrogen sulfide, sulfurous acid, nitrous acid, chlorine, bromine, methyl bromide, ammonium, etc.

134. The graphite is mixed with clay from Mississippi in which ammonium hydroxide is used in the refining process.

135. The graft copolymerization of acrylonitrile onto cotton yarn and viscose rayon with ceric. ammonium nitrate as initiator has been studied.

136. The invention belongs to a preparation method and a detection method of an electrochemiluminescence sensor that is used for quickly detecting ammonium (ammonia).

137. In order to manufacture conductive paper, aniline was polymerized into the micro-pore wall of the pulp fiber by in-situ adsorption polymerization process using ammonium persulfate as oxidant.

138. In the presence of acetic acid and polyethylene glycols, acenaphthene reacts with ammonium ceric nitrate to form 5 nitroacenaphtene under mild conditions with high yields.

139. Phosphoenolpyruvate carboxylase intrinsically located in the chloroplast of rice plays a crucial role in ammonium assimilation.

140. Chapter three: various of 1,4-dihydropyridines were obtained by the reaction of aldehydes, ethyl acetoacetate or acetylacetone, ammonium acetate using PEG-400 as reaction medium without catalyst.

141. In the system of sulfuric acid phenylglycollic acid cinchonine potassium chlorate(sentencedict.com), micro amount of tungsten in ammonium molybdate products has been determined by catalytic polarography.

142. It indicated that the increase in the phase temperature of the polymers was most likely due to the increase in the content of the ammonium ion of the polymers.

143. These creatures, now called anammox bacteria, transform caustic and hazardous ammonium into dinitrogen, the harmless nitrogen gas that makes up 78% of the air we breathe.

144. At last we analyzed the effect of adding seed crystal and solution of ammonium tungstate on crystal appearance.

145. In the presence of nitrogen or air, the thermal stability of PVDC/MEE nanocomposites was eliminated due to ammonium salt catalyzed reaction.

146. The invention provides an organic luminescent material, i. e. a terphenyl bridged-bis-benzimidazole quaternary ammonium compound, a preparation method and application thereof.

147. When it was apparent that urine pH, and not ash or magnesium was the problem, they began to add Ammonium Chloride to their cat foods to acidify the diet.

148. Structute of nitrogen heterocyclic ring quaternary ammonium salt cationic surfactants was identi fied by mass spectrography, nuclear magnetic resonance spectra, infrared spectra and etc.

149. Effects of temperature and supersaturation on the induction period and nucleation of ammonium tetramolybdate were studied.

150. This paper introduces a new technique for preparation of electrolytic zinc from silicon and iron rich zincite by ammonium salt process.