Lavandula angustifolia (flower) - Revision history

Admin: add starr voucher specimen

2015-07-21T17:39:31Z

add starr voucher specimen

Admin: lavender oil to entry (USD 1918)

2015-03-31T14:34:58Z

lavender oil to entry (USD 1918)

Admin: add USD 1918 organoleptic information

2015-03-31T14:18:44Z

add USD 1918 organoleptic information

Admin: add askbox

2014-06-02T20:33:34Z

add askbox

Staffer: Various title corrections, Source additions

2014-03-16T01:17:17Z

Various title corrections, Source additions

Staffer: Nomenclature updated

2014-03-14T18:04:16Z

Nomenclature updated

AHPAStaff: addition of hptlc info.--jd

2013-06-25T01:14:00Z

addition of hptlc info.--jd

New page

=Introduction=
[[Category:NoIntro]]

=Macroscopic Entries=
[[Category:NoMacroscopy]]

=Microscopic Entries=
[[Category:NoMicroscopy]]

=HPTLC Entries=
{{HPTLC | source=HPTLC Association
| companyimage=HPTLC-assoc-Logo-farbig-Text-schwarz-300x47.png
| companyURL=http://www.hptlc-association.org/
| mainimage=Lavandula angustifolia-hptclc-association.png
| caption1=Lavender flower (flower) HPTLC ID - Anisaldehyde reagent, white RT
| description=Lavender flower (flower) (''Lavandula angustifolia'')
|
| stationaryphase=Stationary phase, i.e. Silica gel 60, F254
| mobilephase=Toluene, ethyl acetate 95:5 (v/v)
| prep=Sample: Mix 500 mg of powdered sample with 5 mL of toluene and sonicate for 10 minutes, centrifuge or filter the solutions and use the supernatants / filtrates as test solutions.

Derivatization reagent: Anisaldehyde reagent, Preparation: 170 mL of ice-cooled methanol are mixed with 20 mL of acetic acid, 10 mL of sulfuric acid and 1 mL of anisaldehyde, Use: Dip (time 0, speed 5), heat at 100°C for 5 min.
| detection=Saturated chamber; developing distance 70 mm from lower edge; relative humidity 33%.
| referencesamples=Reference: Dissolve 5 µL of linalool in 1 mL of toluene; Dissolve 5 µL of linalyl acetate in 1mL of toluene; Optional: Dissolve 10 µL of cineole in 1 mL of toluene.
|
| lanes=Lanes, from left to right (Track, Volume, Sample):
# 1 µL Lavender oil 1
# 2 µL Lavender oil 1
# 4 µL Lavender oil 1
# 2 µL Lavender oil 2
# 2 µL Lavender oil 3
# 1 µL Spike Lavender oil 1
# 2 µL Spike Lavender oil 1
# 4 µL Spike Lavender oil 1
# 1 µL Lavandin 1
# 2 µL Lavandin 1
# 4 µL Lavandin 1
# 2 µL Linalool, Cineole, Linalyl acetate (with increasing Rf)
# 2 µL Lavender flower 1
# '''4 µL Lavender flower 1'''
# 6 µL Lavender flower 1

| notes=''Images presented in this entry are examples and are not intended to be used as basis for setting specifications for quality control purposes.''

System suitability test: Linalyl acetate: violet zone at Rf ~ 0.57; Linalool: violet zone at Rf ~ 0.27.

Identification: Compare result with reference images. The fingerprint of the test solution is similar to that of the corresponding botanical reference sample. Additional weak zones may be present. The chromatogram of the test solution shows a violet zone at Rf ~ 0.27 corresponding to reference linalool and a violet zone at Rf ~ 0.57 corresponding to linalyl acetate (blue arrows). Between these zones there is a reddish violet zone at Rf ~ 0.42 (red arrow). There is a grey zone at Rf ~ 0.66 above linalyl acetate.

Test for other species: No yellow zone is seen between the application position and reference linalool (green arrow) (Lavender oil, Lavandin, and Spike lavender oil). Lavender oil, Lavandin, and Spike lavender oil all show a more intense violet zone at the position of linalool. Lavender oil and Lavandin also show a more intense violet zone at the position of linalyl acetate.

| }}

{{HPTLC | source=HPTLC Association
| companyimage=HPTLC-assoc-Logo-farbig-Text-schwarz-300x47.png
| companyURL=http://www.hptlc-association.org/
| mainimage=Lavandula angustifolia-oil-hptclc-association.png
| caption1=Lavender oil (flower) HPTLC ID - Anisaldehyde reagent, white RT
| description=Lavender oil (flower) (''Lavandula angustifolia'')
|
| stationaryphase=Stationary phase, i.e. Silica gel 60, F254
| mobilephase=Toluene, ethyl acetate 95:5 (v/v)
| prep=Sample: Mix 500 mg of powdered sample with 5 mL of toluene and sonicate for 10 minutes, centrifuge or filter the solutions and use the supernatants / filtrates as test solutions.

Derivatization reagent: Anisaldehyde reagent, Preparation: 170 mL of ice-cooled methanol are mixed with 20 mL of acetic acid, 10 mL of sulfuric acid and 1 mL of anisaldehyde, Use: Dip (time 0, speed 5), heat at 100°C for 5 min.
| detection=- Saturated chamber; developing distance 70 mm from lower edge; relative humidity 33%.
| referencesamples=Reference: Dissolve 5 µL of linalool in 1 mL of toluene; Dissolve 5 µL of linalyl acetate in 1mL of toluene; Optional: Dissolve 10 µL of cineole in 1 mL of toluene.
|
| lanes=Lanes, from left to right (Track, Volume, Sample):
# 1 µL Lavender oil 1
# '''2 µL Lavender oil 1'''
# 4 µL Lavender oil 1
# 2 µL Lavender oil 2
# 2 µL Lavender oil 3
# 1 µL Spike Lavender oil 1
# 2 µL Spike Lavender oil 1
# 4 µL Spike Lavender oil 1
# 1 µL Lavandin 1
# 2 µL Lavandin 1
# 4 µL Lavandin 1
# 2 µL Linalool, Cineole, Linalyl acetate (with increasing Rf)
# 2 µL Lavender flower 1
# 4 µL Lavender flower 1
# 6 µL Lavender flower 1

| notes=''Images presented in this entry are examples and are not intended to be used as basis for setting specifications for quality control purposes.''

System suitability test: Linalyl acetate: violet zone at Rf ~ 0.57; Linalool: violet zone at Rf ~ 0.27.

Identification: Compare result with reference images. The fingerprint of the test solution is similar to that of the corresponding botanical reference sample. Additional weak zones may be present. The chromatogram of the test solution shows an intense violet zone at Rf ~ 0.27 corresponding to reference linalool and an intense violet zone at Rf ~ 0.57 corresponding to linalyl acetate (blue arrows). Between these zones there is a violet-red zone at Rf ~ 0.42 (red arrow). Between the red zone and the zone due to linalool there may be a faint violet zone (cineole).

Test for other species: The chromatogram of Spike lavender oil does not show a zone at the position of linalyl acetate. There is a grey zone at the position of cineole (black arrow). The chromatogram of Lavandin shows a narrow violet zone between linalool and cineole (green arrow). Dried Lavender flower shows less intense violet zones due to linalool and linalyl acetate and an additional grey zone above linalyl acetate (orange arrow).

| }}

=Other Points of Interest=

[[Category:Blank2]]

@@ Line 12: / Line 12: @@
 =Botanical Voucher Specimen=
 =Organoleptic Characteristics=
 {| border=1

@@ Line 16: / Line 16: @@
+|
 {{Organolepsy | source=United States Dispensatory (1918)
-| description=Lavender flowers have a strong fragrant odor, and an aromatic, warm, bitterish taste.  They retain their fragrance long after drying.}}
+| description=Lavender flowers have a strong fragrant odor, and an aromatic, warm, bitterish taste.  They retain their fragrance long after drying.
 |}
 =Macroscopic Characteristics=
 =Microscopic Characteristics=

@@ Line 13: / Line 13: @@
 =Botanical Voucher Specimen=
 =Organoleptic Characteristics=
+{| border=1
 =Macroscopic Characteristics=
 =Microscopic Characteristics=

@@ Line 1: / Line 1: @@
-{{DISPLAYTITLE:''Lavandula angustifolia'' (flower) }}
+{{DISPLAYTITLE:''Lavandula angustifolia'' (flower) }} {{askbox|herb=''Lavandula angustifolia''}}
 =Nomenclature=
 {{nomenclature | binomial=Lavandula angustifolia

@@ Line 1: / Line 1: @@
 =Nomenclature=
 {{nomenclature | binomial=Lavandula angustifolia
@@ Line 10: / Line 11: @@
 |notes= }}
-=Macroscopic Entries=
+=Botanical Voucher Specimen=
-[[Category:NoMacroscopy]]
+=Organoleptic Characteristics=
-=Microscopic Entries=
+=Macroscopic Characteristics=
-[[Category:NoMicroscopy]]
+=Microscopic Characteristics=
-=HPTLC Entries=
+=High Performance Thin Layer Chromatographic Identification=
 {{HPTLC | source=HPTLC Association
               | companyimage=HPTLC-assoc-Logo-farbig-Text-schwarz-300x47.png
@@ Line 103: / Line 104: @@
-=Other Points of Interest=
+=Supplementary Information=
+=Sources=
-[[Category:Blank2]]
+<references />