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Merck
CN

F9252

Folin & Ciocalteu 酚试剂

suitable for determination of total protein by Lowry method, 1.9-2.1 N

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关于此项目

UNSPSC Code:
12171500
NACRES:
NA.47
MDL number:
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form

liquid

Quality Level

concentration

1.9-2.1 N

color

clear yellow, faint yellow to very dark yellow, and Faint Green-Yellow to Very Dark Green-Yellow

pH

<0.5 (20 °C)

density

1.240 g/cm3 at 20 °C

suitability

suitable for determination of total protein by Lowry method

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

General description

Folin & Ciocalteu酚试剂最常用于Lowry法测定蛋白浓度。它还用于总酚类的定量。在该方法中,蛋白质用改进的缩二脲试剂(用酒石酸钠钾稳定的碱性铜溶液
)中的铜(II)进行预处理。酚试剂的加入可产生在550-750 nm间提高吸光值的色原。通常,在尖峰(750 nm)或肩峰(660 nm)处的吸光度用于定量1-100 mg/ml之间的蛋白浓度,而550nm处的吸光度用于定量更高的蛋白浓度。
在没有铜的情况下,颜色强度主要由蛋白中的酪氨酸和色氨酸含量决定,并在较小程度上由半胱氨酸和组氨酸决定。铜(II)对由酪氨酸、色氨酸或组氨酸而形成的颜色没有影响,但会由于半胱氨酸而减少颜色形成。
许多对原始检测流程的修改已得到发表,包括用于增强显色、测定不溶性蛋白含量以及过程的自动化。多种物质包括许多缓冲剂、螯合剂、去污剂和环状有机化合物都可对Lowry蛋白检测产生干扰。
Folin & Ciocalteu酚试剂可在色谱过程中用作喷雾剂。

Application

Folin & Ciocalteu酚试剂已用于样品中总酚量的预测。

Other Notes

Folin & Ciocalteu酚试剂中不含酚。反而,试剂可与酚类和非酚类还原性物质反应形成可通过分光光度法检测的色原。
该产品也还作为试剂盒的一部分。


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pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1

存储类别

8B - Non-combustible corrosive hazardous materials

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

法规信息

易制毒化学品(2类)

此项目有



历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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实验方案

To standardize a procedure for the determination of protein by modified Lowry.

Evaluate PCR inhibitors and enzyme selection using GenElute-E Single Spin Plant Extraction Kit, KOD-One PCR Master Mix, and competitors.

Proteinase K activity measured via spectrophotometry using hemoglobin substrate, crucial for enzyme characterization.

相关内容

Products for traditional and alternative protein quantitation techniques available, including BCA, Bradford, Lowry, and more.


Variable salinity responses of 12 alfalfa genotypes and comparative expression analyses of salt-response genes.
Sandhu D
Scientific Reports, 7, 42958-42958 (2017)
E Larson et al.
Analytical biochemistry, 155(2), 243-248 (1986-06-01)
Addition of dithiothreitol in the Lowry procedure 3 min after adding the Folin-Ciocalteau reagent produces immediate color development, with 35 to 60% greater absorbance per mass of protein used.
Analysis of phenolic compounds of interest in metabolism.
H G BRAY et al.
Methods of biochemical analysis, 1, 27-52 (1954-01-01)



全球贸易项目编号

货号GTIN
F9252-100ML04061838113740
F9252-500ML04061838261793
F9252-1L04061838261786