膳食纤维控粉总量检测试剂盒 K-TDFC Total Dietary Fibre Control Flours Kit

膳食纤维控粉总量检测试剂盒 K-TDFC Total Dietary Fibre Control Flours Kit
膳食纤维控粉总量检测试剂盒
英文名:Total Dietary Fibre Control Flours Kit
货号:K-TDFC
规格:Sufficient for 6 Controls
膳食纤维控粉总量检测试剂盒
For use with the Total Dietary Fibre Assay Kit.
Contains barley ß-glucan, high amylose maize starch, wheat starch, casein, pectin and larch galactan. Wheat arabinoxylan is available on request. Content: Sufficient for 10 assays

HTL 移液器 Pipette-Discovery Comfort整支灭菌8道移液器DV8-200 5123

Pipette-Discovery Comfort整支灭菌8道移液器DV8-200   

HTL 移液器 Pipette-Discovery Comfort整支灭菌8道移液器DV8-200 5123
DISCOVERY  Comfort 多道移液器  具有众多与同系列单道移液器一样的特点。人体工程学设计的枪身及推杆按钮,无
论是左手还是右手使用习惯的客户都能享受更流畅、更舒服的操作。除此以外,多道移液器本身革新的杆轴回缩系统,
使在插入一排枪头时每个杆轴轻松回缩。每个杆轴能够独立活动,同时安装 8 个或 12 个枪头时具有一致的密封效果。这
些设计使得您只需很少的力气就能把所有的枪头牢固地安装在各自的杆轴上,从不脱落!
多道移液器革新技术
  安装一排枪头时,杆轴回缩
  每个杆轴独立活动
  安装枪头时一致的密封效果
  不会影响隔壁的枪头
  最小的力量,牢固的密封
  最小的退除枪头用力
回缩杆轴设计不仅确保枪头安装的密封性,同时也减少了常见的枪头安装在杆轴上
相互挤压的现象。创新的弧形设计枪头推杆使得枪头可以被依次退除,从而减少了退除整排枪头所用的力量。改进的
DISCOVERY Comfort 多道移液器可以 360°退除枪头,使得每个方向上都能舒适操作。应用质地轻巧的高级材质打造的枪
身和活塞,使得移液器品质稳定,让您轻松在手,恒久使用!

Beta葡聚糖[混联]检测试剂盒 K-BGLU β-Glucan Assay Kit (Mixed Linkage) 100 assays per kit

Beta葡聚糖[混联]检测试剂盒 K-BGLU β-Glucan Assay Kit (Mixed Linkage) 100 assays per kit
Beta葡聚糖[混联]检测试剂盒
英文名:β-Glucan Assay Kit (Mixed Linkage)
货号:K-BGLU
规格:100 assays per kit
分析物意义: 大麦和燕麦的主要细胞壁多糖
Megazyme检测试剂盒优点:反应迅速、试剂稳定, 只有酶检测试剂盒可用。 AOAC方法 995.16; AACC 方法 32-23
AACC Method 32-23.01, AOAC Method 995.16, EBC Methods 3.11.1, 4.16.1 and 8.11.1, ICC Standard No. 166 and RACI standard method for the measurement of 1,3:1,4-ß-D-glucan in cereal grains, milling fractions, wort and beer. Recommended/Standard procedure of the Association of Official Analytical Chemists (AOAC), American Association of Cereal Chemists (AACC), Royal Australian Chemical Institute (RACI), European Brewing Convention (EBC), and International Association for Cereal Science and Technology (ICC). Content:100 assays per kit
Colourimetric method for the determination of β-Glucan in
cereal grains, feed, foodstuffs, beverages and other materials
Principle:
(lichenase)
(1) β-Glucan + H2O → β-gluco-oligosaccharides
(β-glucosidase)
(2) β-Gluco-oligosaccharides + H2O → D-glucose
(glucose oxidase)
(3) D-Glucose + H2O + O2 → D-gluconate + H2O2
(peroxidase)
(4) 2H2O2 + p-hydroxybenzoic acid + 4-aminoantipyrine →
quinoneimine + 4H2O

Kit size: 100 assays
Method: Spectrophotometric at 510 nm
Total assay time: ~ 100 min
Detection limit: 0.5-100% of sample weight
Application examples:
Oats, barley, malt, wort, beer, food and other materials
Method recognition:
AOAC (Method 995.16), AACC (Method 32-23.01), EBC (Methods
3.10.1, 4.16.1 and 8.13.1), ICC (Standard No. 166), RACI (Standard
Method) and CODEX (Type II Method)
Advantages

  • Very cost effective
  • All reagents stable for > 2 years as supplied
  • Only enzymatic kit available
  • Very specific
  • Simple format
  • Mega-Calc™ software tool is available from our website for hassle-free raw data processing
  • Standard included

Q1. Should the pH of the sample be adjusted even for samples in acidic media?

The pH of the assay solution after the sample is added should be the same as that of the assay buffer that is supplied with the kit.
Low sample volumes (e.g. 0.1 mL) are not likely to affect the pH of the assay solution and therefore may not require pH adjustment.
Samples above 0.1 mL are more likely to affect the pH of the assay solution and therefore the pH of these samples should be adjusted as described in the data booklet, prior to addition to the assay.

Q2. There is an issue with the performance of the kit; the results are not as expected.

If you suspect that the Megazyme test kit is not performing as expected such that expected results are not obtained please do the following:

  1. Ensure that you have tested the standard sample that is supplied with the Megazyme test kit.
  2. Send the results of the kit standard, blank samples and the results obtained for your sample,  in the relevant MegaCalc spreadsheet (if available) to Megazyme (cs@megazyme.com). Where available the relevant MegaCalc spreadsheet can be downloaded from where the product appears on the Megazyme website.
  3. State the kit lot number being used (this is found on the outside of the kit box).
  4. State which assay format was used (refer to the relevant page in the kit booklet if necessary).
  5. State exact details of any modifications to the standard procedure that is provided by Megazyme.
  6. State the sample type and describe the sample preparation steps if applicable.

Q4. I have purchased barley beta-glucan (lot 30108) and carob galactomannan low viscosity (lot 30702) and would like to know what else there might be in these substrates.

Barley beta-glucan lot 30108 would contain about 3-4% arabinoxylan (this was produced in 1993).  Material supplied post 1995 contains < 0.5% arabinoxylan.  Carob galactomannan is quite pure (> 96%).

Q5. Although not specified on the beta-glucan data sheet, is the ratio of 1-3 to 1-4 bonds measured? If so, what is the ratio and would you expect it to remain standardised over a number of different batches?

The content of 1,3 bonds in barley beta-glucan is about 32% (from literature).  We would not expect this to change much (if at all) over different batches.

Q6. Both substrates; barley beta-glucan and wheat arabinoxylan, are standardised to a specific viscosity, e.g. 23-24 cSt. Are the substrates adjusted to give this viscosity?

The substrates are enzymically treated to yield the required viscosity (20 ~ 30 cSt). Modification of the viscosity of beta-glucan is required for IOB viscometric malt beta-glucanase test (which works well).

Q7. We are setting up reducing-sugar assays for both beta-glucanase and xylanase from different fungal origins. Which barley beta-glucan do you recommend for the glucanase assay.

For glucanase assay we recommend the medium viscosity beta-glucan.  We now offer low, medium and high viscosity wheat arabinoxylans, and we think that the low viscosity material will be best (easiest) to use in the reducing-sugar assay.

国产超滤杯可换膜过滤装置

国产超滤杯可换膜过滤装置

超滤杯

一、产品简介
316L不锈钢底座及玻璃筒身超滤杯,配有磁力搅拌子,适用于对强极性有机溶剂及酸碱溶液的分离领域,此超滤装置有90mm、76mm、50mm膜直径三种规格可供选择;可广泛应用于生物制药、蛋白、抗生素、血液制品、食品、饮料、微生物等的分离与浓缩,适合纳滤、超滤、微滤膜片的分离实验
在一些有机溶剂中,如:乙醛、苯、酚、酮(例如丙酮)和脂肪族醚类/酯等以及碳氟化合物使用中,O-型圈的使用寿命会受到影响,此时建议使用四氟垫。有关详情,请与本生产厂家联系

  • 硼硅酸盐玻璃筒身和PTFE组件具有广泛的化学相容性
  • 装膜后可高压高温灭菌
  • 打开顶盖,不必拆卸即可获取裂解液,
  • 部件少,易于清洁和组装
  • 用于47 mm、76mm、90mm圆片滤膜

二、设备清单
1、316L不锈钢顶盖和底板
2、硼硅酸盐玻璃筒身以及硅橡胶垫片具有广泛的化学相容性
3、带磁力搅拌子的聚四氟锁紧螺杆
4、压力导管
5、整套装置可耐高温灭菌
6、包装数量:1套
7、带孔支撑圆片板块:1块
8、气管接头:1个
三、工艺参数
1、使用方法
本装置部件少,易于组装和清洁,打开顶盖,将待分离原液通过加料口倒入杯中,搅拌后,加压,不必拆卸即可从出料口获取裂解液,
2、产品膜片适用规格:90mm、50mm两种杯体
3、最大进口压力:4bar
4、最大直径:12cm
5、高度:17cm
四、技术参数

参数

JLCLM9001

JLCLM9002

JLCLM9003

膜片直径

50mm

80mm

90mm

最大工作体积

250 ml

350 ml

450 ml

管路体积

< 0.75 mL

< 1.2 mL

< 1.5 mL

膜有效直径

40mm

70mm

80 mm

质量

2 kg

2.15k g

2.35kg

高度

17 cm

17 cm

17 cm

最大耐受压力 4.2 bar (60.9 psi)
最大分离压力 3.5bar (50.75 psi)
工作温度r 2–50 °C
O-型圈 硅橡胶
搅拌杆 316L不锈钢
出料口管 硅橡胶

 

五、订货信息

产品描述 包装件数(套) 产品型号

超滤杯, 250 mL

1

JLCLM9001

超滤杯, 350 mL

1

JLCLM9002

超滤杯, 450 mL

1

JLCLM9003

三菱卡尔费休试剂-库仑法AKX/AXI/CXU 【通用型】阳极液AXI

三菱卡尔费休试剂-库仑法AKX/AXI/CXU
三菱卡尔费休试剂-库仑法AKX/AXI/CXU 【通用型】阳极液AXI
经销商促销活动(2016/12/19起至2017/1/23)
库伦法阴极液阳极液容量法滴定液脱水溶剂。可以与三菱化学、瑞士万通、京都电子、梅特勒等品牌的卡氏水分仪配套使用。【通用型】阳极液AXI/阴极液CXU,样品为:油类、锂电池电解液、有机溶剂、无机化学品、石油产品等除醛酮外的大部分样品。【醛酮型】阳极液AKX/阴极液CXU,为酮类等专用试剂。

【详细说明】

三菱卡尔费休试剂卡尔费休试剂-经销商促销活动
(促销活动有效期2016/12/19起至2017/1/23)
上海金畔生物科技有限公司提供三菱卡尔费休试剂-库仑法AKX/AXI/CXU,现货,价格优(促销活动有效期2016/12/19起至2017/1/23),可与三菱化学、瑞士万通、京都电子、梅特勒等品牌的卡氏水分仪配套使用。
优势产品:库仑法阳极液AQUAMICRON ®AXI/AKX
库仑法阴极液AQUAMICRON ®CXU
【通用型】阳极液AXI/阴极液CXU,样品为油类(压缩机油/变压器油/绝缘油等)、锂电池电解液、有机溶剂、无机化学品、石油产品等除醛酮外的大部分样品。
【醛酮型】阳极液AKX/阴极液CXU,样品为酮类、硅油、低羟基酸、某些醛类(芳香族化合物)等专用试剂。

货号 品名 包装 主要溶剂 目录价(RMB)/瓶 库存
621-01755 【通用型】阳极液AXI 500ml 甲醇,碳酸丙烯酯,不含CHCl3和吡啶 1000 现货
605-07591 【醛酮型】阳极液AKX 500ml 碳酸丙烯酯,二甘醇-甲醚,不含CHCl3,含有4-二甲胺基吡啶 1050 现货
602-07501 阴极液CXU,与AXI/AKX配套使用 5ml*10 甲醇,不含吡啶 1050 现货

聚合物引发剂 VA-044, VA-086, VA-057, V-40, V-50, V-501

聚合物引发剂 VA-044, VA-086, VA-057, V-40, V-50, V-501

VA-044 2,2′-Azobis[2-(2-imidazolin-2-yl)propane]dihydrochloride

中文名称:偶氮二异丁咪唑啉盐酸盐
CAS NO.:27776-21-2
英文缩写:AIPC / AIBI
特征:非腈、低温型、水溶性偶氮聚合引发剂,可溶于水、甲醇
V-50 2,2′-Azobis(2-methylpropionamidine)dihydrochl

【详细说明】

VA-044  2,2′-Azobis[2-(2-imidazolin-2-yl)propane]dihydrochloride
中文名称:偶氮二异丁咪唑啉盐酸盐
CAS NO.:27776-21-2
英文缩写:AIPC / AIBI
特征:非腈、低温型、水溶性偶氮聚合引发剂,可溶于水、甲醇
V-50  2,2′-Azobis(2-methylpropionamidine)dihydrochloride
中文名称:偶氮二异丁基脒盐酸盐
CAS NO.:2997-92-4
英文缩写:AIBA
特征:水溶性、阳离子型偶氮聚合引发剂
VA-057  2,2′-Azobis[N-(2-carboxyethyl)-2-methylpropionamidine]hydrate
中文名称:偶氮二N-羟基异丁基脒水合物
CAS NO.:291314-39-1
英文缩写:不提供
特征:非腈、两性、无卤素偶氮聚合引发剂
可溶于水、甲醇
聚合物末端可以导入羧基
VA-067  2,2′-Azobis(1-imino-1-pyrrolidino-2-methylpropane)dihydrochloride
中文名称:偶氮二N,N’环丁基异丁基脒水合物
CAS NO.:409307-60-4
英文缩写:不提供
特征:非腈、阳离子型偶氮聚合引发剂
易溶于水、甲醇
VA-086  2,2′-Azobis[2-methyl-N-(2-hydroxyethyl)propionamide]
中文名称:偶氮二甲基N-2-羟丁基丙烯酰胺
CAS NO.:61551-69-7
英文缩写:不提供
特征:非腈、非离子、无卤素偶氮聚合引发剂
可溶于水、甲醇、乙醇
聚合物末端可导入羟基
注:可用于工业生产,能大量提供

whatman Partisil 4228-001 ODS-3液相色谱柱,10um,4.6 x 250 mm

4228-001 Partisil10ODS-3,4.6x250mm,1/pk

whatman Partisil 4228-001 ODS-3液相色谱柱,10um,4.6 x 250 mm

whatmanPartisil10标准分析色谱柱 4228-001 Partisil 10ODS-3,4.6x250mm,1/pk
WHATMANPartisil色谱柱4226-001SAX10μ4.6*250实物照相关产品
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whamtanPartisPhere反相色谱柱–上海金畔生物科技有限公司公司5um,4.6*100/125/150/250mm
whatmanHPLC保护柱系列–上海金畔生物科技有限公司公司代理4631-10044641-0005等whatmanHPLC保护柱系列–上海金畔生物科技有限公司公司代理

4228-001 PARTISIL 10 ODS3 4.6X250MM

日本SIBATA/日本柴田科学官网 中国上海深圳北京总代理

SIBATA/日本柴田科学 中国总代理
日本SIBATA/日本柴田科学官网 中国上海深圳北京总代理
SIBATA/日本柴田科学 中国总代理

日本SIBATA柴田科学官网 日本柴田中国总代理

SIBATA/日本柴田科学官方代理 上海金畔生物科技有限公司
日本SIBATA/日本柴田科学官网  环境检测仪器中国总代理

日本SIBATA柴田科学官网 日本柴田中国总代理

柴田科学株式会社 – 環境測定機器・科学機器の製造販売

SIBATA/日本柴田科学生产・销售环境测量设备、通用科学设备、理化玻璃器具、化学设备装置、环境试验装置、动物实验装置(涉及商品数量8,000品种,70% 自行生产、30% 商品销售)