主题：【讨论】关于40%硝酸如何配置？

原文由 莫名其妙(moyueqiu) 发表:
我们的SOP上也是写的用40%硝酸配置曲线，40%的硝酸：40ml硝酸定容至100ml容量瓶中。

原文由 reagentlife(reagentlife) 发表:

原文由 莫名其妙(moyueqiu) 发表:
我们的SOP上也是写的用40%硝酸配置曲线，40%的硝酸：40ml硝酸定容至100ml容量瓶中。

赞同，顺便把国外标液生产商提供的计算方法供大家参考下，感谢众老师和专家答疑解惑啊。

问题：

I have a question--how do you prepare 100ml of 5% HNO3 as your matrix through using 65% HNO3? Pls give me your
caculation so that I have know more and tell the customer how to dilute its standard solutions.

国外回复：
The 5% HNO3 of 100 ml is based on the volume. So you add 5 ml of concentration HNO3 (65% HNO3) to water into the
gravemetric clean flask, then dilute to 100 mL mark line on the flask. This will make up 5% HNO3.
Hope this help.

原文由 依风1986(xurunjiao5339) 发表:

原文由 reagentlife(reagentlife) 发表:

原文由 莫名其妙(moyueqiu) 发表:
我们的SOP上也是写的用40%硝酸配置曲线，40%的硝酸：40ml硝酸定容至100ml容量瓶中。

赞同，顺便把国外标液生产商提供的计算方法供大家参考下，感谢众老师和专家答疑解惑啊。

问题：

I have a question--how do you prepare 100ml of 5% HNO3 as your matrix through using 65% HNO3? Pls give me your
caculation so that I have know more and tell the customer how to dilute its standard solutions.

国外回复：
The 5% HNO3 of 100 ml is based on the volume. So you add 5 ml of concentration HNO3 (65% HNO3) to water into the
gravemetric clean flask, then dilute to 100 mL mark line on the flask. This will make up 5% HNO3.
Hope this help.

看来大家把简单问题想得过于复杂了！

原文由 hbnjzx(hbnjzx) 发表:
一般理解成体积比吧？就是40mlHNO3,加纯水定容到100ml容量瓶，单凭这个是这样理解的

我也是这样理解的，正确吗