8.1 Explanations covering several characteristics
Characteristics containing the following key in the second column of the Table of Characteristics should be examined as indicated below:
(a) 10-12 true leaves stage (prior to internode elongation);
(b) The pedicel is in hook stage;
(c) Time of flowering (when the first flower opens on the main stem at 10 % of the plants);
(d) Full blossom;
(e) 10-14 days after the petals drop down on main stem;
(f) Mature, dry capsule of main stem.
8.2 Explanations for individual characteristics
Ad. 2: Rosette leaf: white spots
Ad. 3: Rosette leaf: color
Ad. 4: Rosette leaf: waxiness
The observations of white spots, color and waxiness should be made on the upper side of the rosette leaf.
Ad. 5: Rosette leaf: depth of lobes
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1
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2
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3
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absent or shallow
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medium
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deep
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Ad. 6: Main stem: length
Ad. 7: Stem: anthocyanin coloration
Ad. 8: Stem: hairiness
The observation of anthocyanin coloration and hairiness should be made between the capsule and the upper stem leaf.
Ad. 9: Flower bud: anthocyanin coloration
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1
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2
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3
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absent
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ring around stem
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bottom part towards stem end
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Ad. 11: Petal: blotch
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1
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none
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Ad. 13: Petal: extension of blotch
The measurement should be made at the widest point of petal.
Ad. 14: Petal: incisions
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1
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9
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absent
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present
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Ad. 18: Capsule: shape of longitudinal section
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1
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2
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3
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oblate
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truncate
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circular
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4
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elliptic
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5
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conical
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Ad. 19: Capsule: shape of base
Ad. 20: Capsule: length
length
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-
1
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2
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3
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pointed
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truncate
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depressed
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Ad. 22: Capsule: ribbing
For the observation of ribbing, the capsule should be touched.
Ad. 23: Capsule: dehiscence
For the observation of dehiscence the capsule should be held upside-down and shaken. If seeds do not fall out, the capsule is indehiscent (1). If seeds fall out, the capsule is dehiscent (2).
Ad. 24: Stigmatic disc: shape
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1
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2
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erect
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semi-erect
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3
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5
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horizontal
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decumbent
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Ad. 26: Stigmatic disc: apex of lobe
Ads. 29-32: Capsule: determination of alkaloid contents: morphine, codeine, thebaine and narcotine
Determination of Morphine, Codeine, Thebaine, Papaverine
and Narcotine content in poppy capsule
HPLC method, MS detection
1. Scope
Determination of Morphine, Codeine, Thebaine, Papaverine and Noscapine content in poppy
capsule for qualification purposes.
Limit Of Detection (LOD): 10 mg/kg/component
Limit Of Quantitation (LOQ): 50 mg/kg/component
2. Principle
The sample is extracted with methanol containing 1 ml of cc. hydrochloric acid/litre. The alkaloid content of the extract is determined by HPLC-MS system using RP C18 column. External standards are used for qualitative and quantitative determination.
3. Procedure
3.1. Sample preparation
The receipt sample is weighted and dried to air-dry condition. The stalk, the crop and the seeds are separated. The stalk is ground using 0,5 mm sieve.
3.2. Extraction and clean-up
Weigh 0,2 g of grinded sample and add 100 ml methanol-HCl solution (1 ml cc. HCl/litre methanol. Keep in ultrasonic bath 30 minutes. Filter and this solution inject to the HPLC column.
3.3. HPLC measurement
The determination of the alkaloid content is performed by MS detection (SIM mode) after separation using reversed phase C18 column.
HPLC conditions
The HPLC conditions are advised listed below, but any other conditions can be used if those give suitable results.
Chromatographic column: NUCLEODUR C-18 Gravity 150*4.6mm*5μm or equivalents.
Mobile phase
A eluent: HPLC grade methanol
B eluent: 2 g Ammonium-acetate/litre HPLC grade water
Gradient: 0-4 min. 70% B
4-14 min. 10% B-ig linear gradient
14-20 min. 10% B
Post time: 5 min.
Flow rate
0.9 cm3/min.
Detector
MS SIM APCI: 2-20 perc: 286.0 AMU Positive
300.0 AMU Positive
312.0 AMU Positive
340.0 AMU Positive
414.0 AMU Positive
Injected volume: 2 l
For qualitative and quantitative determination used analytical grade standard solutions in HCL methanol (1 ml cc. HCl/litre methanol) solvent. Calibrate according to ESTD method.
4. Expression of the results
The results are expressed in mg/kg referred to air-dry material.
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