24小时热门版块排行榜    

查看: 884  |  回复: 7
当前主题已经存档。

mabaolin

木虫 (正式写手)

[交流] 土壤溶液怎么过滤

对土壤溶液先计数一下,看有多少微生物细胞。先对土液过滤,那么用滤纸还是脱脂棉呢?二者的过滤作用有何区别呢?是不是对微生物细胞大小有不同的适用范围呢?

[ Last edited by cad_0 on 2006-11-4 at 15:08 ]

» 猜你喜欢

成木虫啦
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

ftfget1

去生物版问问看
2楼2006-03-27 16:19:35
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

wj_21cn

木虫 (正式写手)


steincat(金币+1):多谢参与!
????????????ж???????????

??????????????????飬????????????????????????????

??????????????????????????????

?????????????????S???H?????????????????W????_???????????????D28~2?????????????????o???y???????z?w????????????????????????????????_?f????Щ???????y??????c?N?????筂???????B????agar plate culture technique????????@??R?z?y????direct microscopic examination???????????B????enrichment culture technique????

1.    ?????????B??

?M?Э????????B???r?????????z?w?????????????????m????s???????B???????????????A?????B?????????????T???????????????B?????棬??γ??????D28~3?????????????????????????????????????????

???????????У??H?????????L????B?r?????l???????猢?I?B??????????25?????з???48С?r????????z?y?????????

??????c?????????????????????

?^???????c??????????????L?25?档

?????I??????????????????

??????I????????o?C?I?B?????

?S??I?B????????I??????????????I?Bδ???I?B????С?

???L?????????????????L????????????

????????N??????B???c???B?l?????????????????????????????????M?аl????????B?F??????????????????L?????c????h??????????I?????????ЙC??????????I???????I???L???????????????thermophile???t?????L???????

2.    ????R?z??

????@??R?z?y?r????????z?w????????ωT?????????????????????@??R??z???????????m?????????????Ω??????????????^?e????????c???????????????^?e?С?????w???c????:????

?????????@??R??????????????????N????^????????????????????????Y???

3.    ???????B??

??????z?w????????????????????B?????????????Y????????????x????x???????|????z?w?к????O?????????????????????з??x???????????????p-?u?????????p-hydroxybenzoic acid???r????D28~4?????????u????p-?u????????Ψ??????????????B????????????z?w?N????????????????1?????????????????????????1?????????B???????2???????????Ρ??????????????????????????B????????p-?u??????????Ψ??????????B??????????????????p-?u?????????????????γ??????_????????_??????????????N?????p-?u????????????w???B???????????^????Y?x???K???M??????p-?u??????????????t????????H?????|????B?????????L??

???????B???K??????????????粻????x?????????x???????????S????S???????????棬?}?s???|??????S????N?????????????á?

[ Last edited by wj_21cn on 2006-3-27 at 16:45 ]
3楼2006-03-27 16:44:29
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

mabaolin

木虫 (正式写手)

我是不明白两种过滤方法有何区别?
成木虫啦
4楼2006-03-28 12:05:26
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

玉米糊糊

你先取少量试样 采用两种方式都过虑一下 然后和原来溶液做比对 不就得出结论啦 嘿嘿
5楼2006-03-28 14:09:43
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

klkfb1

木虫 (正式写手)


mabaolin(金币+1):确定?
滤纸的孔径要小于脱脂棉,所以用滤纸滤过后滤液较脱脂棉滤过后滤液澄清
6楼2006-03-30 14:42:34
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

mabaolin

木虫 (正式写手)

滤纸要大于脱脂棉吧
成木虫啦
7楼2006-04-03 20:20:14
已阅   关注TA 给TA发消息 送TA红花 TA的回帖

taicheng

金虫 (职业作家)

滤纸适合用于粉末的过滤,脱脂棉用于颗粒状固体的过滤,个人决的过滤土壤溶液用滤纸好一些
8楼2006-04-04 12:42:58
已阅   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 mabaolin 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 279求调剂 +3 dua1 2026-03-01 4/200 2026-03-02 00:23 by 大脸蛋子
[考研] 求调剂 +5 yunziaaaaa 2026-03-01 6/300 2026-03-01 23:57 by ccp273206157
[考研] 0856材料与化工,270求调剂 +6 YXCT 2026-03-01 6/300 2026-03-01 23:21 by 向上的胖东
[考研] 0856调剂 +5 刘梦微 2026-02-28 5/250 2026-03-01 22:30 by wang_dand
[考研] 274求调剂 +3 cgyzqwn 2026-03-01 6/300 2026-03-01 21:24 by cgyzqwn
[考研] 高分子化学与物理调剂 +6 好好好1233 2026-02-28 12/600 2026-03-01 19:48 by 好好好1233
[考研] 化工299分求调剂 一志愿985落榜 +5 嘻嘻(*^ω^*) 2026-03-01 5/250 2026-03-01 19:47 by 无际的草原
[考研] 0856化工专硕求调剂 +12 董boxing 2026-03-01 12/600 2026-03-01 19:45 by 材子momo
[考研] 一志愿中南大学理学化学 +4 15779376950 2026-03-01 5/250 2026-03-01 19:00 by Fff-1
[考研] 295求调剂 +7 19171856320 2026-02-28 7/350 2026-03-01 18:54 by 18137688336
[考研] 290求调剂 +9 材料专硕调剂; 2026-02-28 11/550 2026-03-01 17:21 by sunny81
[考研] 化工专硕342,一志愿大连理工大学,求调剂 +3 kyf化工 2026-02-28 4/200 2026-03-01 16:49 by yywzz
[考研] 311求调剂 +6 亭亭亭01 2026-03-01 6/300 2026-03-01 15:41 by 324616
[考研] 307求调剂 +5 wyyyqx 2026-03-01 5/250 2026-03-01 15:21 by Fff-1
[考研] 303求调剂 +4 今夏不夏 2026-03-01 4/200 2026-03-01 14:46 by 嘟嘟小浣熊
[考研] 317一志愿华南理工电气工程求调剂 +6 Soliloquy_Q 2026-02-28 11/550 2026-03-01 11:14 by 歌liekkas
[论文投稿] 求助coordination chemistry reviews 的写作模板 10+3 ljplijiapeng 2026-02-27 4/200 2026-03-01 09:07 by babero
[考研] 307求调剂 +4 73372112 2026-02-28 6/300 2026-03-01 00:04 by ll247
[考研] 276求调剂 +3 路lyh123 2026-02-28 4/200 2026-02-28 19:45 by 路lyh123
[高分子] 求环氧树脂研发1名 +3 孙xc 2026-02-25 11/550 2026-02-28 16:57 by ichall
信息提示
请填处理意见