ISO 5373-1981 工业(包括食品)用缩合磷酸盐 钙含量的测定 火焰原子吸收光谱法

百检网 2021-07-17
标准号:ISO 5373-1981
中文标准名称:工业(包括食品)用缩合磷酸盐 钙含量的测定 火焰原子吸收光谱法
英文标准名称:Condensed phosphates for industrial use (including foodstuffs); Determination of calcium content; Flame atomic absorption spectrometric method
标准类型:G10
发布日期:1999/12/31 12:00:00
实施日期:1999/12/31 12:00:00
中国标准分类号:G10
国际标准分类号:71.060.50
适用范围:Applicable to products having Ca contents equal to or more than 50 mg/kg. The presence of soluble SiO2 up to 5 g/ml in the test solution does not interfere. Hydrolysis by boiling a test portion in hydrochloric acid medium. Addition of sodium ions, until a constant concentration is obtained, to stabilize the promotion and emission of Ca; addition of lanthanum chloride to increase the sensitivity of the method. Aspiration of the solution into a dinitrogen monoxide-acetylene flame. Spectrometric measurement of the absorption of the 422.7-nm line emitted by a hollow-cathode calcium lamp. Has also been approved by the IUPAC.

百检能给您带来哪些改变?

1、检测行业全覆盖,满足不同的检测;

2、实验室全覆盖,就近分配本地化检测;

3、工程师一对一服务,让检测更精准;

4、免费初检,初检不收取检测费用;

5、自助下单 快递免费上门取样;

6、周期短,费用低,服务周到;

7、拥有CMA、CNAS、CAL等权威资质;

8、检测报告权威有效、中国通用;

客户案例展示

  • 上海朗波王服饰有限公司
  • 浙江圣达生物药业股份有限公司
  • 天津市长庆电子科技有限公司
  • 上海纽特丝纺织品有限公司
  • 无锡露米娅纺织有限公司
  • 东方电气风电(凉山)有限公司