№ lp_1_18396
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This research study compares the performance of different cup coatings in preventing particle bounce during the aerodynamic particle size distribution analysis of dry powder inhalers using Next Generation Impactor (NGI) and microscopic imaging techniques.
Year:
2021
Region / City:
Sandwich, Kent, United Kingdom
Topic:
Inhaler technology, particle re-entrainment, coating substrates
Document Type:
Research Study
Organization / Institution:
Inhalytic LTD, Canterbury Christ Church University
Author:
Kelsey Cairns, Frank Chambers, Dr. Lee Byrne
Target Audience:
Researchers, pharmaceutical professionals
Period of Validity:
N/A
Approval Date:
N/A
Date of Changes:
N/A
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Year:
2026
Region / City:
Nottingham, UK
Subject:
Dry powder inhaler testing, aerodynamic particle size distribution
Document Type:
Research article
Institution:
Copley Scientific Ltd
Authors:
Ben Bradley, Mark Copley
Target Audience:
Scientists and laboratory technicians in pharmaceutical R&D and quality control
Tested Devices:
Symbicort® Turbohaler®
Experimental Methods:
Andersen Cascade Impactor (ACI), Next Generation Impactor (NGI), Fast Screening Andersen (FSA), Fast Screening Impactor (FSI)
Key Variables:
Flow rate rise-time, flow resistance, apparatus volume
Study Purpose:
To match flow rate rise-time profiles of abbreviated and full resolution impactors using a variable volume and flow resistance compensator
Year:
2026
Region / City:
Northern Ireland, Derry-Londonderry, Belfast
Theme:
Art and Activism
Document Type:
Proposal
Organization:
University of Atypical for Arts and Disability
Author:
Edel Murphy
Target Audience:
Artists, arts organisations
Period of Action:
October 2026
Approval Date:
N/A
Amendment Date:
N/A
Year:
2026
Region / City:
Not specified
Topic:
Physics / Mathematics
Document Type:
Instructional Guide
Organization / Institution:
Not specified
Author:
Not specified
Target Audience:
Students, Educators
Period of Validity:
Not specified
Approval Date:
Not specified
Date of Changes:
Not specified
Note:
Year
Year:
2020
Subject:
Quantitative analysis of active compounds in traditional Chinese medicinal materials
Document type:
Laboratory analytical report
Analytical method:
High-performance liquid chromatography (HPLC)
Analytes:
Berberine hydrochloride; Phellodendrine chloride; Osthole
Test materials:
Phellodendri Chinensis Cortex (Huangbo); Cnidii Fructus (Shechuangzi)
Instruments:
LC-20AT high-performance liquid chromatograph (Shimadzu, Japan); XSE205DU electronic balance (Mettler Toledo, USA)
Reagent supplier:
Shanghai Yuanye Biotechnology Co., Ltd. (China)
Material supplier:
Shandong Jianlian Shengjia Traditional Chinese Medicine Store (China)
Detection wavelengths:
265 nm; 284 nm; 322 nm
Specified content thresholds:
Berberine ≥ 3.00%; Phellodendrine ≥ 0.34%; Osthole ≥ 1.00%
Measured average contents:
Berberine 5.88%; Phellodendrine 0.49%; Osthole 1.82%
Additional data:
Mouse skin lesion severity scoring table; Molecular docking binding energies with TNF, IL-6, IL-1β, and AKT1
Year:
2022-2023
Region / Institution:
University of Nebraska–Lincoln, Water Sciences Laboratory, USA
Subject:
Analytical chemistry, toxicology
Document type:
Research proposal
Authors:
Unspecified student researcher under Drs. Kim, Peeples, Rhoades, and Snow
Target audience:
Scientific community and laboratory researchers
Research focus:
Detection and validation of N-nitrosoatrazine (NNAT) in blood and tissue samples
Methods:
High performance liquid chromatography (HPLC) and mass spectrometry (MS)
Sample types:
Mouse placenta, fetal tissue, rat blood
Timeline:
Stage 1 (Jan–May 2022), Stage 2 (Jun 2022–May 2023)
Objective:
Assess accuracy and efficiency of HPLC and MS for NNAT detection
Document type:
Supporting information
Subject:
Preparation, characterization and analytical validation of DMY-bNE nanoemulsion
Compound investigated:
Dihydromyricetin (DMY)
Formulation:
High DMY-loaded biomimetic nanoemulsion (DMY-bNE)
Related disease model:
Nonalcoholic fatty liver disease (NAFLD)
Experimental model:
Healthy and NAFLD mice
Treatment duration:
6 weeks
Analytical method:
High-performance liquid chromatography (HPLC)
HPLC system:
Waters e2695 with UV detector
Column specification:
Reverse phase C18 column (250 × 4.6 mm, 5 μm)
Detection wavelength:
290 nm
Validation guideline:
ICH Q2
Pharmacokinetic parameters:
Cmax, Tmax, AUC, t1/2, CL, MRT, V
Statistical analysis:
One-Way ANOVA
Number of animals per group:
n = 8
In vitro release models:
Zero-order, First-order, Higuchi
Supplementary content:
Figures S1–S6 and Tables S1–S7
Year:
2023
Region / Location:
Pacific and California coastal waters
Subject:
Marine pigment analysis
Document Type:
Research appendix / dataset
Institutions:
Goericke Laboratory (UCSD), Horn Point Analytical Laboratory (UMCES)
Authors:
J. Peloquin et al.
Target Audience:
Marine scientists, oceanographers
Sampling Period:
July-August 2021, February 2014, April 2014
Methodology:
High-Performance Liquid Chromatography (HPLC)
Key Pigments Analyzed:
Chlorophyll a, Divinyl Chl a, Chl b, Chl c, fucoxanthin, hexanoyloxyfucoxanthin, alloxanthin, diadinoxanthin, peridinin, zeaxanthin, butanoyloxyfucoxanthin, neoxanthin, prasinoxanthin
Data Reference:
MAREDAT global database (Peloquin et al., 2013)
Year:
Not specified
Region / Country:
Pakistan
Cities:
Multan; Sahiwal
Field:
Pharmaceutical analysis; Analytical chemistry; Pharmaceutics
Document Type:
Scientific research article
Institutions:
Drug Testing Laboratory Government of Punjab; Bahauddin Zakariya University Faculty of Pharmacy; Quaid-e-Azam College of Pharmacy
Authors:
Rao Khurram Ayoub; Syed Nisar Hussain Shah; Asma Aslam; Romana Riaz; Naveed Nisar; Shakeel Ijaz; Aousaf Ahmad; Muneeb Ahmad
Corresponding Author:
Syed Nisar Hussain Shah
Affiliation of Corresponding Author:
Department of Pharmaceutics Faculty of Pharmacy Bahauddin Zakariya University Multan Pakistan; Quaid-e-Azam College of Pharmacy Sahiwal Punjab Pakistan
Keywords:
HPLC; Famotidine; Drotaverine; Ondansetron; Central composite design
Analyzed Compounds:
Ondansetron Dihydrochloride; Famotidine; Drotaverine Hydrochloride
Experimental Model:
Rabbit plasma
Methodology:
High-performance liquid chromatography with central composite design optimization
Mobile Phase Composition:
Acetonitrile and phosphate buffer pH 4.8 (40:60 v/v)
Flow Rate:
1.5 mL/min
Replication:
Six experimental replicates
Contact Email:
[email protected]
Contact Phone:
+92-334-7315016
Matrix:
Cannabis concentrates / extracts / resins
Customer:
In-house
Testing bundle:
{bundle}
Job number:
{jobs}
Method status:
Validated method issued for use
Purpose:
Analysis of cannabinoids in cannabis concentrates, extracts and resins
Analytes:
CBD, Δ9-THC, CBDA, THCA, Δ8-THC, CBC, CBCA, CBG, CBGA, CBN, CBDV, CBDB
Analytical technique:
High Performance Liquid Chromatography with Dual Diode Array Detection (HPLC-Dual DAD)
Instrument:
Agilent 1200 series HPLC with thermostated autosampler and dual diode array detectors
Column:
Agilent Zorbax Eclipse Plus C18 (100 × 2.1 mm × 1.8 µm)
Detection system:
Dual diode array detector with 60 mm and 3.7 mm UV cells
Mobile phase A:
Water with 0.1 % formic acid
Mobile phase B:
Methanol with 0.05 % formic acid
Calibration standard:
1000 mg/L CBD in methanol
Quantification range CBD and Δ9-THC:
0.03 (LOQ) to 90 % w/w
Quantification range CBDA and THCA:
0.03 (LOQ) to 10 % w/w
Quantification range other cannabinoids:
0.03 (LOQ) to 5 % w/w
Sample preparation:
Dissolution in THF and methanol followed by filtration through 0.2 µm regenerated cellulose filter
Sample storage condition:
Autosampler at 8 °C for up to 48 hours
Safety requirements:
Laboratory coat, safety glasses, disposable gloves and face shield when handling concentrated acids or bases
Responsible roles:
Analyst; Supervisor / Manager
Related validation references:
VR-056, VR-097, VR-105
Source method reference:
VAM-042 (v7.0)
Related procedures:
SOP-010, SOP-020, LOG-001, CCCV-034, CCCV-092, QSP-00
Year:
2026
Region / City:
Laboratory study
Subject:
Biochemical analysis of DBPDE metabolism
Document Type:
Supplemental data / Research figure
Institution:
Unspecified research laboratory
Author:
Unspecified
Target Audience:
Researchers in biochemistry and toxicology
Experimental Conditions:
Incubation in keratinocyte growth medium, room temperature, overnight
Analytical Method:
HPLC with fluorescence detection, Shimadzu LC20AD, Waters C18 Symmetry column
Compounds Studied:
DBPDE-induced tetrols
BRB Extract Concentrations:
10 µg/ml, 50 µg/ml
Sample Amount:
250 pg of tetrols applied to the column
Chromatography Conditions:
0.17 ml/min flow, pH 4.0, 10 mM ammonium phosphate buffer, 45% acetonitrile
Detection Wavelength:
Excitation 344 nm, Emission 400 nm
Peaks Identified:
(-)-anti-trans-DBPDD tetrol I and (-)-anti-trans-DBP tetrol II
Supplementary Figure Reference:
Fig. 1
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:
2026
Region:
Changbai Mountain, Jingyuetan, Cultivation base
Subjects:
Polygonatum odoratum, Acanthopanax sessiliflorus, Dioscorea nipponica
Document type:
Research supplementary material
Methodologies:
HPLC analysis, SSR and RFLP primer sequencing, AMOVA
Author:
Not specified
Target audience:
Plant geneticists, pharmacognosy researchers
Sample type:
Wild and cultivated populations
Coordinates:
N42°21′51″E127°59′23″ – N43°56′48″E125°14′26″
Chemical compounds analyzed:
Rutinum, Dioscin, Chlorogenic acid, Syringin (Eleutheroside B), Eleutheroside E, Isofraxidin, Disogluside
Genetic variation metrics:
FST, AMOVA percentages
HPLC similarity measures:
Pearson correlation coefficients among populations