24小时热门版块排行榜    

查看: 3306  |  回复: 8
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

小雷想

铁虫 (正式写手)

[求助] cpm是神马单位? 已有3人参与

The  confluent cells were incubated in serum-free  medium for  30 min  followed  by  the  addition  of  50,000-100,000 cpmcpm  of  125I-labeled human  growth hormone  (hGH)
回复此楼

» 猜你喜欢

» 本主题相关价值贴推荐,对您同样有帮助:

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

小雷想

铁虫 (正式写手)

引用回帖:
2楼: Originally posted by 旧西圆 at 2014-02-27 17:55:01
是cycles per minute吗?

应该不是吧,是放射性元素的单位,但我就是查不到
3楼2014-02-27 18:29:18
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 9 个回答

旧西圆

新虫 (小有名气)

【答案】应助回帖

感谢参与,应助指数 +1
是cycles per minute吗?
2楼2014-02-27 17:55:01
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

wizardfan

至尊木虫 (著名写手)

优秀版主

【答案】应助回帖

感谢参与,应助指数 +1
和放射有关的就是counts per minute
The measurement of ionizing radiation is sometimes expressed as being a rate of counts per unit time registered by a radiation monitoring instrument, of which counts per minute and counts per second are commonly used.

This measurement is only of the rate of events registered by the measuring instrument, not the rate of events at the point of original emission. For radioactive decay measurements it must not be confused with disintegrations per unit time (dpm), which represents the rate of atomic disintegration events at the source of the radiation.

Count rates are normally associated with the measurements of particles, such as alpha particles and beta particles. For gamma ray and X-ray dose measurements a unit such as the Sievert is normally used
4楼2014-02-28 06:23:45
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

yipan

铜虫 (职业作家)


【答案】应助回帖

★ ★ ★ ★ ★
感谢参与,应助指数 +1
小雷想: 金币+5, ★★★★★最佳答案 2014-03-01 09:57:07
CPM是次/分钟,CPS是次/秒,这两个单位都是计数率。
5楼2014-02-28 10:13:58
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 【双一流院校新能源、环境材料,材料加工与模拟招收大量调剂】 +4 Higraduate 2026-03-22 8/400 2026-03-26 20:34 by Higraduate
[考研] 286求调剂 +13 Faune 2026-03-21 13/650 2026-03-26 19:52 by peike
[考研] 340求调剂 +3 Amber00 2026-03-26 3/150 2026-03-26 18:57 by 不吃魚的貓
[考研] 274求调剂 +14 顾九笙要谦虚 2026-03-24 20/1000 2026-03-26 18:15 by 乐呵呵的追梦人
[考研] 271求调剂 +6 生如夏花… 2026-03-22 6/300 2026-03-26 16:48 by 张凯十八号
[考研] 22 350 本科985求调剂,求老登收留 +4 李轶男003 2026-03-20 4/200 2026-03-26 16:05 by 哇啦啦啦xtj
[考研] 一志愿陕师大生物学071000,298分,求调剂 +4 SYA! 2026-03-23 4/200 2026-03-26 15:27 by caiaijun80
[考研] 一志愿河工大 081700 276求调剂 +4 地球绕着太阳转 2026-03-23 4/200 2026-03-26 14:27 by zzll406
[考研] 299求调剂 +4 15188958825 2026-03-25 4/200 2026-03-25 22:56 by 418490947
[考研] 材料与化工304求B区调剂 +3 邱gl 2026-03-25 3/150 2026-03-25 19:03 by Ainin_
[考研] 318求调剂 +5 plum李子 2026-03-21 8/400 2026-03-25 09:26 by aa331100
[考研] 材料考研调剂生 +3 黄粱一梦千年 2026-03-24 3/150 2026-03-24 17:00 by barlinike
[考研] 材料专硕331求调剂 +4 鲜当牛 2026-03-24 4/200 2026-03-24 15:58 by JourneyLucky
[考研] 求调剂一志愿武汉理工大学材料工程(085601) +5 WW.' 2026-03-23 7/350 2026-03-24 14:50 by sprinining
[考研] 284求调剂 +3 yanzhixue111 2026-03-23 6/300 2026-03-23 22:58 by pswait
[考研] 361求调剂 +3 Glack 2026-03-22 3/150 2026-03-23 22:03 by fuyu_
[考研] 求调剂院校信息 +6 CX 330 2026-03-21 6/300 2026-03-22 15:25 by 无懈可击111
[考研] 一志愿南大,0703化学,分数336,求调剂 +3 收到VS 2026-03-21 3/150 2026-03-21 18:42 by 学员8dgXkO
[考研] 336求调剂 +5 rmc8866 2026-03-21 5/250 2026-03-21 17:24 by 学员8dgXkO
[考研] 261求B区调剂,科研经历丰富 +3 牛奶很忙 2026-03-20 4/200 2026-03-20 19:34 by JourneyLucky
信息提示
请填处理意见