久久人妻熟女中文字幕av蜜芽,我我色综合,两女女百合互慰av赤裸无遮挡,脱了内裤掀起pg两边打肿

歡迎來到化學(xué)加!萃聚英才,共享化學(xué)!化學(xué)加,加您更精彩!客服熱線:186-7688-2001
圖片加載中
LOADING IMAGES
海粟    硅膠60 (Davisil Grade 22)孔徑60 ? 60-200目 海粟    硅膠60 (Davisil Grade 22)孔徑60 ? 60-200目

海粟 硅膠60 (Davisil Grade 22)孔徑60 ? 60-200目

CAS號 63231-67-4
規(guī)格 500g/瓶,1kg/袋,10kg/箱,20kg/箱,20kg/袋
純度 99.9%
貨號 HSSI062060R
貨期 0
品牌 海粟
庫存 1000000
注意:請務(wù)必與賣家聯(lián)系核實(shí)單價庫存,以確保您的資金安全及交易順利。
參考價: ¥120.00 元/公斤
貨號 品牌 純度 規(guī)格 參考價 貨期
HSSI062060R 海粟 99.9% 500g/瓶,1kg/袋,10kg/箱,20kg/箱,20kg/袋 ¥120.00元/公斤 0

產(chǎn)品詳情

詳細(xì)信息(中文):
不規(guī)則硅膠層析色譜填料
不規(guī)則硅膠層析色譜填料大多為裸硅膠,是最傳統(tǒng)的,經(jīng)濟(jì)性高,工業(yè)規(guī)模化應(yīng)用常壓低壓中最合適的色譜層析填料,請根據(jù)實(shí)際情況選擇各項(xiàng)指標(biāo)參數(shù)。
?關(guān)鍵指標(biāo):
顆粒度(外在形態(tài)、粒徑密度大小分布等);
孔徑(如比表面、孔容相關(guān)內(nèi)在指標(biāo))。
這兩項(xiàng)的選擇最為重要,會直接影響色譜應(yīng)用中如壓力、保留值、收率、純度和效率等生產(chǎn)關(guān)鍵因素。
?不規(guī)則層析色譜填料選擇指南:
1、粒徑的選擇:

2、孔徑的選擇:

?不規(guī)則層析色譜填料指標(biāo)規(guī)格參數(shù):
名稱 不規(guī)則硅膠層析色譜填料
孔徑 (1)30-50? (2)60-80?
(3)80-110? (4)120-200?
(5)300-500? (6)600-1000?
比表面 50-350-550-700㎡/g
粒徑 (1)40-80目 (2)60-80目 (3)60-100目
(4)80-100目 (5)80-120目 (6)100-160目
(7)100-200目 (8)150-250目 (9)200-300目
(10)250-350目 (11)300-400目 (12)230-400目
(13)400-600目 (14)600-800目 (15)800-1000目
(16)20-45um (17)10-20um (18)40-63um
pH pH值:3-5、6-8、6-7、7-8
適用色譜層析設(shè)備 高中低壓柱、常壓減壓柱、中小試工業(yè)化柱;
玻璃、不銹鋼等各種層析柱;
Flash柱、制備柱;
包裝方式 500克、1公斤、10公斤、20公斤;
(瓶裝、袋裝、紙箱、桶裝)
備注 以上為批量化生產(chǎn)規(guī)格,均可提供試用樣品;
如孔徑、粒徑、金屬元素等有特殊要求可定制生產(chǎn)

詳細(xì)信息(英文):
Silica Gel Column Chromatography
Column chromatography is the ideal method of chromatography for purification and separation. It is a technique in which the stationary phase is solid adsorbents like silica gel is a liquid. The principle of active compound separation depends on the activity of adsorbents and polarity of the solvent. If the polarity of the solvent is very low and the activity of the adsorbent is strong and high, then result of separation of compound is good. On the other hand, if the polarity of the solvent is very high and the activity of adsorbents is high then it gives poor results of compound separation. It means purification and isolation of compounds are not 100% pure.

The process of column chromatography is the oldest and the most common technique f or the separation of complex mixtures packed in a column. Chromatography is a technology by which a mixture of chemicals are separated by its components between two phases like stationary phase which is remain fixed in placed using two adsorbents such as silica gel and activated alumina, while as mobile phase is another method which is slowly movable and flows down through the column by either gravitational forces or external pressure into the column. The Stationery phase may be solid or liquid and the mobile phase is always in solid liquid foam use different solvents.

Analytical Chromatography: The collectively term of chromatography is may be analytical or preparative. The starting phase of chromatography is analytical chromatography with little amount of silica gel mesh 60-120 size by using analytical column packaging, to analysis how many percentage of mixture is purify. Analytical chromatography is a simple method of chromatography with faster and cost effective separation. In analytical chemistry development, techniques for solving chemical subtracts by using thin layer plates coated silica gel on glass plate. This technique becomes standa

產(chǎn)品實(shí)物圖

產(chǎn)品實(shí)物圖

產(chǎn)品百科查看更多

英文名 Silica gel
中文名 硅膠60
CAS號 63231-67-4 溶解性 ---
分子量 78.09960 熔點(diǎn) ---
密度 --- 沸點(diǎn) ---

商家信息

青島海粟新材料科技有限公司

營業(yè)執(zhí)照已審核 企業(yè)已認(rèn)證

聯(lián)系人:袁濤 點(diǎn)擊這里給我發(fā)消息

號碼一: 131****

號碼二: 131****

VIP企業(yè)默認(rèn)展示聯(lián)系方式,非VIP企業(yè)僅限注冊登錄用戶可見

  • 公司類型:生產(chǎn)廠
  • 成立時間:2022-08-04
  • 所在地區(qū):山東省
  • 注冊資本:1000萬元
推薦供應(yīng)商

產(chǎn)品:硅膠60

主站蜘蛛池模板: 林周县| 青川县| 兰坪| 陵水| 多伦县| 闽清县| 钦州市| 台北市| 桦南县| 灯塔市| 宁乡县| 冀州市| 阿图什市| 桂东县| 双辽市| 台北市| 阳东县| 马边| 仲巴县| 北安市| 永春县| 光山县| 凤台县| 全南县| 遵义县| 柯坪县| 婺源县| 山阴县| 铜陵市| 绥江县| 洪湖市| 方山县| 独山县| 禹城市| 太谷县| 铜鼓县| 大邑县| 同心县| 临颍县| 桑植县| 明光市|