What are the chemical reaction characteristics of tropane alkaloids?

氢溴东莨菪碱的鉴别原理是什么？

Objective To investigate the composition and preparation method of galanthamine hydrobromide dispersion tablets.

目的研究氢溴加兰他敏分散片的处方组成及制备工艺。

Ethyl lauryl alcohol respectively react with hydrobromic acid to product bromohydrocarbon,sulfuric acid for catalyst。

以正十二醇和氢溴为原料,在浓的催化下,生产溴十二烷。

Bromooctane was synthesized from industrial hydrobromic acid(48%) and n-octanol using concentrated sulfuric acid as catalyst.

以工业废氢溴(48%)为原料,在浓在下,与正辛醇进行反应合成1-溴辛烷。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴钠溶液中滴加适量的丙酮,在四丁溴化铵催化下,高产率得到四溴化碳。

It has discovered that trace dimethyl glyoxime can sensitivly catalyize the discoloration of dimethyl yelloue by potassium bromate in sulphuric acid.

研究发现，在介质中，超痕量二甲乙二灵敏地加速溴钾氧化二甲黄褪色的指示反应。

In the liquor of acetic acid,the catalyzed synthesis of m-chlorobenzoic acid by the reaction of m-chlorobenzal dehyde and potassium bromate was studied.

在醋溶液中,以间氯苯甲、溴钾为原料合成间氯苯甲,分别研究了反应温度、反应时间、原料配比、溶剂的用量等条件对合成反应的影响,确定了最佳工艺条件。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰苯并咪唑和溴化钠为原料,在光照条件下用氯气置换出溴化钠中的溴素,合成兽药噻苯咪唑中间体-2-(二溴乙酰)-苯并咪唑氢溴盐。

Based on the catalytic effect of thiocyanate on the oxidation of alizarine red by potassium bromate,a new catalytic spectrophotometric method for the determination of trace thiocyanate was developed.

在磷介质中，氰根对溴钾氧化茜素红的褪色反应具有较强的催化作用，据此建立了催化光度法测定痕量氰根的新方法。

The results indicated that compared with potassium bromate, GOD has a strong effect on denaturing the wheat flour protein and in addition, excessive GOD might result in overoxidation.

结果表明，葡萄糖氧化酶对小麦粉中蛋白质的改性作用较溴钾速度快且作用强烈，同时，过量的葡萄糖氧化酶可会造成氧化过度。

Objective : A method of HPLC for the determination of complex preparations of guaiphenesin , chlorpheniramine maleate and dextromethorphan hydrobromide has been described Methods : C 18 column , 0.

建立一种采用高效液相色谱检测复方制剂中氢溴美沙芬、愈创木酚甘油醚和马来氯苯那敏含量的方法。

What are the chemical reaction characteristics of tropane alkaloids?

氢溴酸碱的鉴别原理是什么？

Objective To investigate the composition and preparation method of galanthamine hydrobromide dispersion tablets.

目的研究氢溴酸加兰他敏分散片的处方组及制备工艺。

Ethyl lauryl alcohol respectively react with hydrobromic acid to product bromohydrocarbon,sulfuric acid for catalyst。

以正十二醇和氢溴酸为原料,在浓硫酸的催化下,生产溴十二烷。

Bromooctane was synthesized from industrial hydrobromic acid(48%) and n-octanol using concentrated sulfuric acid as catalyst.

以工业废氢溴酸(48%)为原料,在浓硫酸存在下,与正辛醇进行反应1-溴辛烷。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠溶液中滴加适量的丙酮,在四丁溴化铵催化下,高产率得到四溴化碳。

It has discovered that trace dimethyl glyoxime can sensitivly catalyize the discoloration of dimethyl yelloue by potassium bromate in sulphuric acid.

研究发现，在硫酸介质中，超痕量二甲乙二醛肟能灵敏地加速溴酸钾氧化二甲黄褪色的指示反应。

In the liquor of acetic acid,the catalyzed synthesis of m-chlorobenzoic acid by the reaction of m-chlorobenzal dehyde and potassium bromate was studied.

在醋酸溶液中,以间氯苯甲醛、溴酸钾为原料间氯苯甲酸,分别研究了反应温度、反应时间、原料配比、溶剂的用量等条件反应的影响,确定了最佳工艺条件。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰苯并咪唑和溴化钠为原料,在光照条件下用氯气置换出溴化钠中的溴素,兽药噻苯咪唑中间体-2-(二溴乙酰)-苯并咪唑氢溴酸盐。

Based on the catalytic effect of thiocyanate on the oxidation of alizarine red by potassium bromate,a new catalytic spectrophotometric method for the determination of trace thiocyanate was developed.

在磷酸介质中，硫氰酸根溴酸钾氧化茜素红的褪色反应具有较强的催化作用，据此建立了催化光度法测定痕量硫氰酸根的新方法。

The results indicated that compared with potassium bromate, GOD has a strong effect on denaturing the wheat flour protein and in addition, excessive GOD might result in overoxidation.

结果表明，葡萄糖氧化酶小麦粉中蛋白质的改性作用较溴酸钾速度快且作用强烈，同时，过量的葡萄糖氧化酶可能会造氧化过度。

Objective : A method of HPLC for the determination of complex preparations of guaiphenesin , chlorpheniramine maleate and dextromethorphan hydrobromide has been described Methods : C 18 column , 0.

建立一种采用高效液相色谱检测复方制剂中氢溴酸美沙芬、愈创木酚甘油醚和马来酸氯苯那敏含量的方法。

What are the chemical reaction characteristics of tropane alkaloids?

氢溴酸东莨菪碱的鉴别原理是什么？

Objective To investigate the composition and preparation method of galanthamine hydrobromide dispersion tablets.

目的研究氢溴酸加兰他敏分散片的处方组成及制备工艺。

Ethyl lauryl alcohol respectively react with hydrobromic acid to product bromohydrocarbon,sulfuric acid for catalyst。

以正十二醇和氢溴酸为原料,浓硫酸的下,生产溴十二烷。

Bromooctane was synthesized from industrial hydrobromic acid(48%) and n-octanol using concentrated sulfuric acid as catalyst.

以工业废氢溴酸(48%)为原料,浓硫酸存下,与正辛醇进行反应合成1-溴辛烷。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠溶液中滴加适量的丙,丁溴下,高产率得到溴碳。

It has discovered that trace dimethyl glyoxime can sensitivly catalyize the discoloration of dimethyl yelloue by potassium bromate in sulphuric acid.

研究发现，硫酸介质中，超痕量二甲乙二醛肟能灵敏地加速溴酸钾氧二甲黄褪色的指示反应。

In the liquor of acetic acid,the catalyzed synthesis of m-chlorobenzoic acid by the reaction of m-chlorobenzal dehyde and potassium bromate was studied.

醋酸溶液中,以间氯苯甲醛、溴酸钾为原料合成间氯苯甲酸,分别研究了反应温度、反应时间、原料配比、溶剂的用量等条件对合成反应的影响,确定了最佳工艺条件。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰苯并咪唑和溴钠为原料,光照条件下用氯气置换出溴钠中的溴素,合成兽药噻苯咪唑中间体-2-(二溴乙酰)-苯并咪唑氢溴酸盐。

Based on the catalytic effect of thiocyanate on the oxidation of alizarine red by potassium bromate,a new catalytic spectrophotometric method for the determination of trace thiocyanate was developed.

磷酸介质中，硫氰酸根对溴酸钾氧茜素红的褪色反应具有较强的作用，据此建立了光度法测定痕量硫氰酸根的新方法。

The results indicated that compared with potassium bromate, GOD has a strong effect on denaturing the wheat flour protein and in addition, excessive GOD might result in overoxidation.

结果表明，葡萄糖氧酶对小麦粉中蛋白质的改性作用较溴酸钾速度快且作用强烈，同时，过量的葡萄糖氧酶可能会造成氧过度。

Objective : A method of HPLC for the determination of complex preparations of guaiphenesin , chlorpheniramine maleate and dextromethorphan hydrobromide has been described Methods : C 18 column , 0.

建立一种采用高效液相色谱检测复方制剂中氢溴酸美沙芬、愈创木酚甘油醚和马来酸氯苯那敏含量的方法。

What are the chemical reaction characteristics of tropane alkaloids?

氢溴菪碱的鉴别原理是什么？

Objective To investigate the composition and preparation method of galanthamine hydrobromide dispersion tablets.

目的研究氢溴加兰他敏分散片的处方组及制备工艺。

Ethyl lauryl alcohol respectively react with hydrobromic acid to product bromohydrocarbon,sulfuric acid for catalyst。

以正十二醇和氢溴为原料,在浓硫的催化下,生产溴十二烷。

Bromooctane was synthesized from industrial hydrobromic acid(48%) and n-octanol using concentrated sulfuric acid as catalyst.

以工业废氢溴(48%)为原料,在浓硫存在下,与正辛醇进行应1-溴辛烷。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴钠溶液中滴加适量的丙酮,在四丁溴化铵催化下,高产率得到四溴化碳。

It has discovered that trace dimethyl glyoxime can sensitivly catalyize the discoloration of dimethyl yelloue by potassium bromate in sulphuric acid.

研究发现，在硫介质中，超痕量二甲乙二醛肟能灵敏地加速溴钾氧化二甲黄褪色的指示应。

In the liquor of acetic acid,the catalyzed synthesis of m-chlorobenzoic acid by the reaction of m-chlorobenzal dehyde and potassium bromate was studied.

在醋溶液中,以间氯苯甲醛、溴钾为原料间氯苯甲,分别研究了应温度、应时间、原料配比、溶剂的用量等条件对应的影响,确定了最佳工艺条件。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰苯并咪唑和溴化钠为原料,在光照条件下用氯气置换出溴化钠中的溴素,兽药噻苯咪唑中间体-2-(二溴乙酰)-苯并咪唑氢溴盐。

Based on the catalytic effect of thiocyanate on the oxidation of alizarine red by potassium bromate,a new catalytic spectrophotometric method for the determination of trace thiocyanate was developed.

在磷介质中，硫氰根对溴钾氧化茜素红的褪色应具有较强的催化作用，据此建立了催化光度法测定痕量硫氰根的新方法。

The results indicated that compared with potassium bromate, GOD has a strong effect on denaturing the wheat flour protein and in addition, excessive GOD might result in overoxidation.

结果表明，葡萄糖氧化酶对小麦粉中蛋白质的改性作用较溴钾速度快且作用强烈，同时，过量的葡萄糖氧化酶可能会造氧化过度。

Objective : A method of HPLC for the determination of complex preparations of guaiphenesin , chlorpheniramine maleate and dextromethorphan hydrobromide has been described Methods : C 18 column , 0.

建立一种采用高效液相色谱检测复方制剂中氢溴美沙芬、愈创木酚甘油醚和马来氯苯那敏含量的方法。

What are the chemical reaction characteristics of tropane alkaloids?

氢溴酸东莨菪碱的鉴别原理是什么？

Objective To investigate the composition and preparation method of galanthamine hydrobromide dispersion tablets.

目的研究氢溴酸加兰他敏分散片的处方组成及制备工艺。

Ethyl lauryl alcohol respectively react with hydrobromic acid to product bromohydrocarbon,sulfuric acid for catalyst。

以正十二醇和氢溴酸为原料,浓硫酸的下,生产溴十二烷。

Bromooctane was synthesized from industrial hydrobromic acid(48%) and n-octanol using concentrated sulfuric acid as catalyst.

以工业废氢溴酸(48%)为原料,浓硫酸存下,与正辛醇进行反应合成1-溴辛烷。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠溶液中滴加适量的,四丁溴下,高产率得到四溴碳。

It has discovered that trace dimethyl glyoxime can sensitivly catalyize the discoloration of dimethyl yelloue by potassium bromate in sulphuric acid.

研究发现，硫酸介质中，超痕量二甲乙二醛肟能灵敏地加速溴酸钾氧二甲黄褪色的指示反应。

In the liquor of acetic acid,the catalyzed synthesis of m-chlorobenzoic acid by the reaction of m-chlorobenzal dehyde and potassium bromate was studied.

醋酸溶液中,以间氯苯甲醛、溴酸钾为原料合成间氯苯甲酸,分别研究了反应温度、反应时间、原料配比、溶剂的用量等条件对合成反应的影响,确定了最佳工艺条件。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰苯并咪唑和溴钠为原料,光照条件下用氯气置换出溴钠中的溴素,合成兽药噻苯咪唑中间体-2-(二溴乙酰)-苯并咪唑氢溴酸盐。

Based on the catalytic effect of thiocyanate on the oxidation of alizarine red by potassium bromate,a new catalytic spectrophotometric method for the determination of trace thiocyanate was developed.

磷酸介质中，硫氰酸根对溴酸钾氧茜素红的褪色反应具有较强的作用，据此建立了光度法测定痕量硫氰酸根的新方法。

The results indicated that compared with potassium bromate, GOD has a strong effect on denaturing the wheat flour protein and in addition, excessive GOD might result in overoxidation.

结果表明，葡萄糖氧酶对小麦粉中蛋白质的改性作用较溴酸钾速度快且作用强烈，同时，过量的葡萄糖氧酶可能会造成氧过度。

Objective : A method of HPLC for the determination of complex preparations of guaiphenesin , chlorpheniramine maleate and dextromethorphan hydrobromide has been described Methods : C 18 column , 0.

建立一种采用高效液相色谱检测复方制剂中氢溴酸美沙芬、愈创木酚甘油醚和马来酸氯苯那敏含量的方法。

What are the chemical reaction characteristics of tropane alkaloids?

氢溴酸东莨菪碱鉴别理是什么？

Objective To investigate the composition and preparation method of galanthamine hydrobromide dispersion tablets.

目氢溴酸加兰他敏分散片处方组成及制备工艺。

Ethyl lauryl alcohol respectively react with hydrobromic acid to product bromohydrocarbon,sulfuric acid for catalyst。

以正十二醇和氢溴酸为,在浓硫酸催化下,生产溴十二烷。

Bromooctane was synthesized from industrial hydrobromic acid(48%) and n-octanol using concentrated sulfuric acid as catalyst.

以工业废氢溴酸(48%)为,在浓硫酸存在下,与正辛醇进行反应合成1-溴辛烷。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠溶液中滴加适量丙酮,在四丁溴化铵催化下,高产率得到四溴化碳。

It has discovered that trace dimethyl glyoxime can sensitivly catalyize the discoloration of dimethyl yelloue by potassium bromate in sulphuric acid.

发现，在硫酸介质中，超痕量二甲乙二醛肟能灵敏地加速溴酸钾氧化二甲黄褪色指示反应。

In the liquor of acetic acid,the catalyzed synthesis of m-chlorobenzoic acid by the reaction of m-chlorobenzal dehyde and potassium bromate was studied.

在醋酸溶液中,以氯苯甲醛、溴酸钾为合成氯苯甲酸,分别了反应温度、反应时、配比、溶剂用量等条件对合成反应影响,确定了最佳工艺条件。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰苯并咪唑和溴化钠为,在光照条件下用氯气置换出溴化钠中溴素,合成兽药噻苯咪唑中体-2-(二溴乙酰)-苯并咪唑氢溴酸盐。

Based on the catalytic effect of thiocyanate on the oxidation of alizarine red by potassium bromate,a new catalytic spectrophotometric method for the determination of trace thiocyanate was developed.

在磷酸介质中，硫氰酸根对溴酸钾氧化茜素红褪色反应具有较强催化作用，据此建立了催化光度法测定痕量硫氰酸根新方法。

The results indicated that compared with potassium bromate, GOD has a strong effect on denaturing the wheat flour protein and in addition, excessive GOD might result in overoxidation.

结果表明，葡萄糖氧化酶对小麦粉中蛋白质改性作用较溴酸钾速度快且作用强烈，同时，过量葡萄糖氧化酶可能会造成氧化过度。

Objective : A method of HPLC for the determination of complex preparations of guaiphenesin , chlorpheniramine maleate and dextromethorphan hydrobromide has been described Methods : C 18 column , 0.

建立一种采用高效液相色谱检测复方制剂中氢溴酸美沙芬、愈创木酚甘油醚和马来酸氯苯那敏含量方法。

What are the chemical reaction characteristics of tropane alkaloids?

氢溴酸东莨菪碱鉴别理是什么？

Objective To investigate the composition and preparation method of galanthamine hydrobromide dispersion tablets.

究氢溴酸加兰他敏分散片处方组成及制备工艺。

Ethyl lauryl alcohol respectively react with hydrobromic acid to product bromohydrocarbon,sulfuric acid for catalyst。

以正十二醇和氢溴酸为,在浓硫酸催化下,生产溴十二烷。

Bromooctane was synthesized from industrial hydrobromic acid(48%) and n-octanol using concentrated sulfuric acid as catalyst.

以工业废氢溴酸(48%)为,在浓硫酸存在下,与正辛醇进行反应合成1-溴辛烷。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠溶液中滴加适量丙酮,在四丁溴化铵催化下,高产率得到四溴化碳。

It has discovered that trace dimethyl glyoxime can sensitivly catalyize the discoloration of dimethyl yelloue by potassium bromate in sulphuric acid.

究发现，在硫酸介质中，超痕量二甲乙二醛肟能灵敏地加速溴酸钾氧化二甲黄褪色指示反应。

In the liquor of acetic acid,the catalyzed synthesis of m-chlorobenzoic acid by the reaction of m-chlorobenzal dehyde and potassium bromate was studied.

在醋酸溶液中,以间氯苯甲醛、溴酸钾为合成间氯苯甲酸,分别究了反应温度、反应时间、比、溶剂用量等条件对合成反应影响,确定了最佳工艺条件。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰苯并咪唑和溴化钠为,在光照条件下用氯气置换出溴化钠中溴素,合成兽药噻苯咪唑中间体-2-(二溴乙酰)-苯并咪唑氢溴酸盐。

Based on the catalytic effect of thiocyanate on the oxidation of alizarine red by potassium bromate,a new catalytic spectrophotometric method for the determination of trace thiocyanate was developed.

在磷酸介质中，硫氰酸根对溴酸钾氧化茜素红褪色反应具有较强催化作用，据此建立了催化光度法测定痕量硫氰酸根新方法。

The results indicated that compared with potassium bromate, GOD has a strong effect on denaturing the wheat flour protein and in addition, excessive GOD might result in overoxidation.

结果表明，葡萄糖氧化酶对小麦粉中蛋白质改性作用较溴酸钾速度快且作用强烈，同时，过量葡萄糖氧化酶可能会造成氧化过度。

Objective : A method of HPLC for the determination of complex preparations of guaiphenesin , chlorpheniramine maleate and dextromethorphan hydrobromide has been described Methods : C 18 column , 0.

建立一种采用高效液相色谱检测复方制剂中氢溴酸美沙芬、愈创木酚甘油醚和马来酸氯苯那敏含量方法。

What are the chemical reaction characteristics of tropane alkaloids?

氢溴东莨菪碱鉴别原理是什么？

Objective To investigate the composition and preparation method of galanthamine hydrobromide dispersion tablets.

目研究氢溴加兰他敏分散片处方组成及制备工艺。

Ethyl lauryl alcohol respectively react with hydrobromic acid to product bromohydrocarbon,sulfuric acid for catalyst。

以正十二醇和氢溴为原料,浓硫化下,生产溴十二烷。

Bromooctane was synthesized from industrial hydrobromic acid(48%) and n-octanol using concentrated sulfuric acid as catalyst.

以工业废氢溴(48%)为原料,浓硫存下,与正辛醇进行反合成1-溴辛烷。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴钠溶液中滴加适量丙酮,四丁溴化铵化下,高产率得到四溴化碳。

It has discovered that trace dimethyl glyoxime can sensitivly catalyize the discoloration of dimethyl yelloue by potassium bromate in sulphuric acid.

研究发现，硫介质中，超痕量二甲乙二醛肟能灵敏地加速溴钾氧化二甲黄褪色指示反。

In the liquor of acetic acid,the catalyzed synthesis of m-chlorobenzoic acid by the reaction of m-chlorobenzal dehyde and potassium bromate was studied.

溶液中,以间氯苯甲醛、溴钾为原料合成间氯苯甲,分别研究了反温度、反时间、原料配比、溶剂用量等条件对合成反影响,确定了最佳工艺条件。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰苯并咪唑和溴化钠为原料,光照条件下用氯气置换出溴化钠中溴素,合成兽药噻苯咪唑中间体-2-(二溴乙酰)-苯并咪唑氢溴盐。

Based on the catalytic effect of thiocyanate on the oxidation of alizarine red by potassium bromate,a new catalytic spectrophotometric method for the determination of trace thiocyanate was developed.

磷介质中，硫氰根对溴钾氧化茜素红褪色反具有较强化作用，据此建立了化光度法测定痕量硫氰根新方法。

The results indicated that compared with potassium bromate, GOD has a strong effect on denaturing the wheat flour protein and in addition, excessive GOD might result in overoxidation.

结果表明，葡萄糖氧化酶对小麦粉中蛋白质改性作用较溴钾速度快且作用强烈，同时，过量葡萄糖氧化酶可能会造成氧化过度。

Objective : A method of HPLC for the determination of complex preparations of guaiphenesin , chlorpheniramine maleate and dextromethorphan hydrobromide has been described Methods : C 18 column , 0.

建立一种采用高效液相色谱检测复方制剂中氢溴美沙芬、愈创木酚甘油醚和马来氯苯那敏含量方法。

What are the chemical reaction characteristics of tropane alkaloids?

氢溴东莨菪碱的鉴别原理是什么？

Objective To investigate the composition and preparation method of galanthamine hydrobromide dispersion tablets.

目的研究氢溴加兰他敏分散片的处方组成及制备工艺。

Ethyl lauryl alcohol respectively react with hydrobromic acid to product bromohydrocarbon,sulfuric acid for catalyst。

以正十二醇和氢溴为原料,在的催化下,生产溴十二烷。

Bromooctane was synthesized from industrial hydrobromic acid(48%) and n-octanol using concentrated sulfuric acid as catalyst.

以工业废氢溴(48%)为原料,在存在下,与正辛醇进行反应合成1-溴辛烷。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴钠溶液中滴加适量的丙酮,在四丁溴化铵催化下,高产率得到四溴化碳。

It has discovered that trace dimethyl glyoxime can sensitivly catalyize the discoloration of dimethyl yelloue by potassium bromate in sulphuric acid.

研究发现，在介质中，超痕量二甲乙二醛敏地加速溴钾氧化二甲黄褪色的指示反应。

In the liquor of acetic acid,the catalyzed synthesis of m-chlorobenzoic acid by the reaction of m-chlorobenzal dehyde and potassium bromate was studied.

在醋溶液中,以间氯苯甲醛、溴钾为原料合成间氯苯甲,分别研究了反应温度、反应时间、原料配比、溶剂的用量等条件对合成反应的影响,确定了最佳工艺条件。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰苯并咪唑和溴化钠为原料,在光照条件下用氯气置换出溴化钠中的溴素,合成兽药噻苯咪唑中间体-2-(二溴乙酰)-苯并咪唑氢溴盐。

Based on the catalytic effect of thiocyanate on the oxidation of alizarine red by potassium bromate,a new catalytic spectrophotometric method for the determination of trace thiocyanate was developed.

在磷介质中，氰根对溴钾氧化茜素红的褪色反应具有较强的催化作用，据此建立了催化光度法测定痕量氰根的新方法。

The results indicated that compared with potassium bromate, GOD has a strong effect on denaturing the wheat flour protein and in addition, excessive GOD might result in overoxidation.

结果表明，葡萄糖氧化酶对小麦粉中蛋白质的改性作用较溴钾速度快且作用强烈，同时，过量的葡萄糖氧化酶可会造成氧化过度。

Objective : A method of HPLC for the determination of complex preparations of guaiphenesin , chlorpheniramine maleate and dextromethorphan hydrobromide has been described Methods : C 18 column , 0.

建立一种采用高效液相色谱检测复方制剂中氢溴美沙芬、愈创木酚甘油醚和马来氯苯那敏含量的方法。