№ files_lp_4_process_3_119707
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This document is a pre-lab assignment intended for students to prepare for a paper chromatography experiment, detailing the questions to be answered before conducting the lab.
Note:
Year
Topic:
Chemistry / Laboratory Experiment
Document Type:
Pre-lab Assignment
Target Audience:
Students
Price: 8 / 10 USD
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The product description is provided for reference. Actual content and formatting may differ slightly.
Note:
Year
Topic:
Packaging Standards
Document type:
Form
Target audience:
Manufacturers, suppliers, and packaging designers
Contextual description:
This document is a form used for submitting packaging components, inks, and dyes for regulatory review, ensuring compliance with environmental and safety standards.
Year:
2017
Region / City:
New Delhi
Topic:
Herbal Medicine, Ophthalmology
Document Type:
Medical Examination Notes
Organization / Institution:
AIIMS, Singapore National Eye Center
Author:
Dr Sourabh Sharma
Target Audience:
Medical professionals, students, and healthcare workers
Period of Validity:
September 2017
Date of Approval:
September 2017
Date of Changes:
None
Year:
1949–2021
Authors:
Iris Groeneveld, Maria Kanelli, Freek Ariese, Maarten R. van Bommel
Affiliations:
Vrije Universiteit Amsterdam; University of Amsterdam; Amsterdam Institute for Molecular and Life Sciences; Centre for Analytical Sciences Amsterdam (CASA); Amsterdam School for Heritage, Memory and Material Culture
Document Type:
Supplementary Information / Research Data
Field:
Analytical Chemistry / Photostability of Colorants
Scope:
Organic Dyes and Pigments, Light-Induced Degradation, Analytical Methods
Analytical Methods:
UV-Visible Spectroscopy, NMR, LC, LC-MS, Colorimetry, Raman Spectroscopy, Microfading, EDX, ESR, Electrochemistry, Microspectrophotometry
Parameters Studied:
Light Source, Irradiation Intensity, Wavelength, Oxygen, Temperature, Catalyst, Catalyst Loading, Dye Concentration, Substrate Effects, Solvent, pH
Target Audience:
Researchers in Chemistry, Conservation Science, and Cultural Heritage
Purpose:
Overview of experimental data on factors influencing light stability and degradation of colorants
Year:
Not specified
Laboratory / Facility:
SOPJin’s group, NSC 544
Instrument:
Shimadzu Nexera LC-40 HPLC
Document Type:
Standard Operating Procedure
Subject:
High-performance liquid chromatography operation and sample handling
Applicable Samples:
Water-soluble and UV-active peptides, compounds, dyes, and their conjugates
Excluded Samples:
DNA, RNA, proteins, polymers
Mobile Phase Composition:
MQ Water with 0.1% TFA (A) and acetonitrile with 0.1% TFA (B)
Detection Method:
PDA detector, wavelength range 190–800 nm
Column Types Mentioned:
C18 analytical and semi-preparative columns
Software:
LabSolutions
User Requirements:
Sample filtration with 0.22 µm filter, HPLC time booking in Microsoft Calendar
Operational Conditions:
Analytical flow rate ~1 mL/min; semi-prep flow rate 3–4 mL/min; column oven 35 °C
Safety and Handling Notes:
Degassing solvents, checking for leaks, stepwise pressure increase, cleaning injector and loop after use
Year:
Not specified
Region / City:
Not specified
Topic:
Environmental Science, Watersheds, Pollution, Food Chains
Document Type:
Lab Guide
Organization / Institution:
Not specified
Author:
Not specified
Target Audience:
Students, Educators
Period of Activity:
Not specified
Approval Date:
Not specified
Date of Changes:
Not specified
Purpose:
To examine the effects of humidity, air temperature, and air pressure on weather
Estimated time:
Approximately 60 minutes
Research question:
How do atmospheric conditions influence weather patterns?
Subject area:
Meteorology
Topic:
Weather phenomena formation
Type of document:
Educational lab guide
Format:
Virtual lab activity instructions
Intended audience:
Students
Learning context:
Virtual classroom
Weather phenomena covered:
Snow, rain, thunderstorm, fog, clear skies
Data collection method:
Observation and recording in a data table
Year:
Not specified
Region / City:
Not specified
Topic:
Physics, Thermal Energy Transfer
Document Type:
Laboratory Procedure
Institution:
Not specified
Author:
Not specified
Target Audience:
Students
Period of Use:
Not specified
Approval Date:
Not specified
Date of Changes:
Not specified
Note:
Year
Subject:
Circulatory System
Document Type:
Lab Report
Target Audience:
Students
Note:
Year
Theme:
Environmental Science
Document Type:
Educational Material
Target Audience:
Students, Educators
Subject:
Physics
Topic:
Friction and atomic interactions during surface contact
Document type:
Laboratory worksheet
Educational level:
School science class
Activity type:
Pre-lab reflection and interactive simulation analysis
Software / resource referenced:
PhET Friction Simulation
Objects studied:
Two books representing contacting surfaces
Measured variable:
Temperature change during friction
Concepts addressed:
Surface friction, particle motion, microwelds, heat generation
Student tasks:
Reflection, hypothesis writing, simulation interaction, observation recording
Fields included:
Name, Date, School, Facilitator
Year:
2023
Region / City:
Not specified
Topic:
Laboratory techniques, Media preparation
Document type:
Pre-lab assignment
Institution:
Not specified
Author:
Not specified
Target audience:
Students in a laboratory course
Period of validity:
Not specified
Approval date:
Not specified
Modification date:
Not specified
Context:
Pre-lab assignment aimed at preparing students for laboratory work, including media preparation and dilution techniques.
Note:
Year
Notifying Members:
Burundi; Kenya; Rwanda; Tanzania; Uganda
Responsible Agency:
Rwanda Standards Board (RSB)
Agency Address:
KK 15 Rd, P.O. Box 7099, Kigali, Rwanda
Contact Information:
Tel +250 788303492; Email [email protected]
Note:
; Website www.rsb.gov.rw
Notification Basis:
WTO TBT Agreement Article 2.9.2
Products Covered:
Flexible packaging materials
ICS Code:
55
Standard Reference:
DEAS 886:2025
Document Status:
Draft East African Standard
Language:
English
Number of Pages:
47
Scope:
Quantitative determination of residual solvents in flexible packaging materials by headspace gas chromatography
Exclusions:
Residues from thermal decomposition products
Applicable Materials:
Mono- or multilayer plastic films; paper; board; foil; composite materials
Objectives:
Consumer information and labelling; consumer protection; protection of human health and safety; environmental protection; quality requirements; trade facilitation
Related Documents:
ISO 5725-2
Proposed Date of Adoption:
To be determined
Proposed Entry into Force:
Six months from adoption
Final Date for Comments:
17 March 2026
Source Type:
International standards notification under WTO TBT Agreement
Year:
2023
Region / City:
Varanasi, India
Topic:
Public Procurement, Tender Documentation, Government Policies
Document Type:
Bid Document
Organization / Institution:
Banaras Hindu University, Government of India
Author:
Dr T V Somanathan, Finance Secretary & Secretary (Expenditure)
Target Audience:
Procuring officials in Ministries/Departments and Public Enterprises
Period of Effectiveness:
2023-2024
Approval Date:
07-10-2023
Date of Revisions:
N/A
Note:
Year
Subject:
Chromatography Method Development, Validation, Verification, Transfer
Document Type:
Form
Institution:
Eurofins Chemical Analysis
Target Audience:
Customers submitting materials for analysis
Year:
2020
Region / city:
Not specified
Subject:
Analytical chemistry, Mass spectrometry
Document type:
Research article
Author:
Not specified
Target audience:
Researchers in analytical chemistry
Period of validity:
Not specified
Approval date:
Not specified
Date of changes:
Not specified
Year:
Not provided
Region / City:
Not provided
Subject:
Analytical chemistry
Document type:
Laboratory procedure
Organization / Institution:
Not provided
Author:
Not provided
Target audience:
Students in chemistry or related fields
Period of validity:
Not provided
Date of approval:
Not provided
Date of revisions:
Not provided
Note:
Year
Topic:
Chemistry, Chromatography
Document Type:
Educational material
Target Audience:
Learners, students
Year:
2015
Region / City:
United Kingdom
Subject:
Biology, Chemistry
Document Type:
Laboratory protocol
Institution:
Dart Publishing; SQA
Target Audience:
Advanced Higher Biology students
Curriculum Links:
Higher Biology; Advanced Higher Biology ‘Cells and Protein’ Unit
Equipment:
Chromatography paper, amino acid samples, ninhydrin spray, chromatography solvent, capillary tubes, fume cupboard, safety goggles, gloves
Method:
Paper chromatography with ninhydrin detection
Safety Precautions:
Handling of ammonia solution, ethanol, ninhydrin; use of protective equipment; risk assessment required
References:
SQA Higher and Advanced Higher Biology Course Support Notes, 2014