国产精品一品二区三区的使用体验丨4hu亚洲人成人无码网www电影首页丨久久久久久伊人高潮影院丨娜娜麻豆国产电影丨中国美女牲交视频

Water quality chlorophyll grinder

Model:JXFSTPRP-YLS-02

Brand:Shanghai Jingxin

Specifications :Set

Introduction:HJ 897-2017 specially developed a new type of tissue grinder JXFSTPRP-YLS (patented product, counterfeit) Must be investigated! ZL2019301918692).

Product Description:

Shanghai Jingxin Industrial Development Co., Ltd., against the Ministry of Environmental Protection, has developed a new type of tissue grinder JXFSTPRP-YLS (patented product, counterfeiting must be investigated!) ZL2019301918692).

Experimental principle:

Filter a certain amount of sample with a filter membrane to trap the algae, grind and break the algae cells, extract the chlorophyll with acetone solution, measure the absorbance of the extract at 750nm, 664nm, 647nm and 630nm wavelengths after centrifugal separation, and calculate the concentration of chlorophyll a in the water according to the formula.

Application of JXFSTPRP-YLS standard method for extracting chlorophyll:

1. Filtration: Add magnesium carbonate suspension before suction filtration to prevent pigment decomposition. The negative pressure cannot exceed 50kPa.

2. Chlorophyll extraction: place the filter membrane in the JXFSTPRP-YLS extractor, add 10ml of 90% acetone solution, and grind for 1min at 1500-2000rpm. Break the phytoplankton algae cells on the filter membrane. After grinding, it is soaked and extracted in the dark at 4℃, and the soaking time is 2h to 24h. Final centrifugation and clarification: Centrifuge at 1000g for 20 minutes or filter, and transfer the supernatant to a stopcock glass vial.

3. Determination method: spectrophotometry, three-color equation to determine the absorbance of 664nm, 647nm, 630nm, 750nm to calculate the chlorophyll a, b, c chlorophyll content. Determination of the corrected content of pheophytin a by monochromatic equation

JXFSTPRP-YLS can process 18×15 mL centrifuge tubes at the same time for rapid cell disruption, cell lysis, and tissue homogenization.

The ground samples include plant roots, stems, leaves, flowers, fruits, seeds and certain animal tissues; especially suitable for the extraction of nucleic acids, proteins and other components in plant tissues. In addition, it can also break yeast, cultured animal cells, bacterial cells, etc. to extract the components.

The three-dimensional integrated oscillation mode makes the sample grinding more uniform and sufficient, the sample repeatability is good, and there is no cross-contamination between the samples. It is a real high-throughput grinding oscillation system. Each sample only takes 1-2 minutes to complete.

For temperature-sensitive samples, Shanghai Jingxin accessories can be selected for cryogenic grinding and storage.


JXFSTPRP-YLS Applicable samples and applications:

1. PCR (polymerase chain reaction) rapid multi-sample grinding preparation

2. Quickly lyse the tissue homogenate, perform nucleic acid extraction, RNA/DNA extraction, and protein extraction

3. Lysis of yeast and bacterial cells

4. Analysis of pesticides/insecticides (testing food residue pesticides or toxic substances in LC/MS/MS sample processing

5. QuEChERS method (pesticide, antibiotic, drug extraction)

6. Extraction of medicinal active ingredients APIs

7. Food safety (contamination, adulteration, food traceability)

8. Biofuel

Main features of surface water chlorophyll tissue grinder:

? For the application of extracting nucleic acid, protein and its analysis components from plant samples, a specially designed grinding machine is carried out

? High throughput: It can grind 8*15ml samples at the same time, and is suitable for the grinding of samples of various sizes, which greatly improves work efficiency

? Each sample only takes 1-2 minutes to complete

? In order to ensure the reproducibility, effectiveness and comparability of the samples, the grinder can set the grinding time, grinding rate and cycle number to ensure the consistency of each grinding and the next grinding conditions, the maximum time is 99 minutes.

? Built-in two safety locks and a sample compartment cover interlock, extremely safe and reliable.

? Experts in grinding animal and plant samples at room temperature and low temperature

? The start and stop buttons allow the user to start or stop the grinding process at any time.

? Optional Shanghai Jingxin cryogenic accessories for cryogenic grinding and storage of temperature-sensitive RNA and protein extraction samples

technical parameter:

model

JX-PS1

JX-PS2

JX-PS3

Feed opening size

Number of bowls

120*1

130*2

130*3

Feeding size(mm)

≤15

≤15

≤15

Discharge size(um)

10-20

10-20

10-20

Production capacity(g)

100

200

300

power

1.1KW (380V)

1.1KW (380V)

1.5KW (380V)

Dimensions(mm)

480*480*730

480*480*730

530*530*920

Weight

110

115

130

Grinding tank capacity

300-3000ml

 

 

Jar material

Stainless steel, agate, tungsten carbide


2020.12.21
水質葉綠素研磨儀---檢測地表水中葉綠素a的含量
貫徹執行《中華人民共和國環境保護法》,根據國家和上級監測站要求參與制定有關政策法規和監測技術規范。 參與本地區環境監測規劃、計劃的制定,并貫徹執行。按照國家環境監測技術規范開展環境質量監測,對轄區內的污染源實施監督監測,對重點污染源建立和健全排污動態檔案,編寫監測報告。
2020.12.21
上海凈信全自動樣品研磨儀研磨濾紙---檢測地表水中葉綠素a的含量
實驗目的是檢測地表水(湖水、河水等)中葉綠素a的含量,檢測標準參照HJ 897-2017行業標準
Related Products
Inquiry message
*Name:

*Company/City:
*Phone:
*Contact:
*City:
*Code:
主站蜘蛛池模板: 精品无码无人网站免费视频| 日日碰狠狠躁久久躁婷婷| 日韩午夜激情视频| 男人把女人桶到爽免费应用| 白天躁晚上躁麻豆视频| 亚洲精品国偷拍自产在线观看蜜桃| 欧美日韩一本| 成年女人永久免费观看视频| 国产性自拍| 亚洲国产另类久久久精品小说| 韩国三级大全久久网站| 久久综合精品国产丝袜长腿| 思思久久99热久久精品66| 免费的很黄很污的视频| 成人亚洲精品久久久久软件| 国产精品门事件av| 欧美高清精品一区二区| 国产精品美女久久久久久久| 国精品无码一区二区三区在线蜜臀 | 一区二区三区免费在线| 加勒比中文无码久久综合色| 国产成人女人毛片视频在线| 天天影视色香欲综合久久| 老鸭窝视频在线观看| 免费国产高清在线精品一区| 99久久久无码国产精品古装| 国内精品无码一区二区三区| 国产欧美日韩| www无套内射高清免费| 久久久久无码国产精品不卡| 国产日韩欧美| 午夜免费福利小电影| 中文有码在线| 久九九精品免费视频| 国产福利短视频| 国产精品无码a∨麻豆 | 国产爆乳无码视频在线观看3| 奇米精品视频一区二区三区 |