birds-custom-login domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /var/www/html/wp-includes/functions.php on line 6114temporary-login-without-password domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /var/www/html/wp-includes/functions.php on line 6114wp-user-avatar domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /var/www/html/wp-includes/functions.php on line 6114cuar domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /var/www/html/wp-includes/functions.php on line 6114有关铅同位素比值的常见问题
1. Are you able to measure Lead 210?
我们目前无法提供210Pb测试。目前，我们提供206Pb/204Pb, 207Pb/204Pb, 208Pb/204Pb, 208Pb/206Pb和 207Pb/206比值的精确测试。了解有关我们目前测试的铅同位素的更多信息。
2. 锆石材料可以提交用于测年吗？
虽然该材料可以提交用于同位素分析，但我们不通过铅分析提供任何年代学服务。
3. 铅的精度是多少？
对于207Pb/206Pb ，NIST SRM 981标准溶液的铅同位素方法不确定度从±0.000047到±0.000023 (%95 CI) 不等。
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