Chromatography - Revision history

NRJC: /* About Chromatography */

2022-02-23T17:19:25Z

‎About Chromatography

Ellen References at 13:46, 1 December 2019

2019-12-01T13:46:40Z

Ellen References at 15:20, 16 November 2019

2019-11-16T15:20:41Z

Ellen References at 11:51, 3 November 2019

2019-11-03T11:51:14Z

NRJC: /* Detecting Purity */

2019-04-05T14:37:29Z

‎Detecting Purity

NRJC: /* Key Stage 3 */

2019-01-29T11:30:40Z

‎Key Stage 3

NRJC: /* Method */

2019-01-23T10:28:09Z

‎Method

NRJC: /* Identifying Chemicals by Rf Number */

2019-01-23T10:26:30Z

‎Identifying Chemicals by Rf Number

NRJC: /* Method */

2019-01-23T10:25:36Z

‎Method

NRJC: /* Identifying Chemicals by Comparison */

2019-01-22T12:37:40Z

‎Identifying Chemicals by Comparison

@@ Line 7: / Line 7: @@
 : When more than one [[solute]] is [[dissolve]]d in a [[solvent]] [[chromatography]] can be used to [[Separating Mixtures|separate]] them.
 : [[Chromatography]] [[experiment]]s are often done with colourful [[solute]]s which can be seen easily.
+: [[Chromatography]] works because different [[solute]]s [[diffusion|diffuse]] at different rates.
 {| class="wikitable"
 |-

← Older revision		Revision as of 13:46, 1 December 2019
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	:[https://www.amazon.co.uk/gp/product/1292120215/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120215&linkCode=as2&tag=nrjc-21&linkId=8f96ddb76196848bafdb124354e4cf77 ''Chromatography; paper 8-9, GCSE Chemistry, Pearson, Edexcel '']		:[https://www.amazon.co.uk/gp/product/1292120215/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120215&linkCode=as2&tag=nrjc-21&linkId=8f96ddb76196848bafdb124354e4cf77 ''Chromatography; paper 8-9, GCSE Chemistry, Pearson, Edexcel '']
	:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Chromatography; paper, pages 152-153, GCSE Combined Science, Pearson Edexcel '']		:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Chromatography; paper, pages 152-153, GCSE Combined Science, Pearson Edexcel '']
		+
		+	====OCR====
		+	:[https://www.amazon.co.uk/gp/product/1782945695/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945695&linkCode=as2&tag=nrjc-21&linkId=ceafcc80bcad6b6754ee97a0c7ceea53 ''Chromatography, pages 102, 103, Gateway GCSE Combined Science; The Revision Guide, CGP, OCR '']
		+	:[https://www.amazon.co.uk/gp/product/1782945679/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945679&linkCode=as2&tag=nrjc-21&linkId=a2db42f7b4bdf10cafaafa3bb9120940 ''Chromatography, pages 29, 30, 61, GCSE Chemistry; The Revision Guide, CGP, OCR Gateway '']
		+	:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359829&linkCode=as2&tag=nrjc-21&linkId=90e8d7b4f039d53035238fa0320fe00b ''Chromatography, pages 46-49, 153, 268-269, Gateway GCSE Chemistry, Oxford, OCR '']

← Older revision		Revision as of 15:20, 16 November 2019
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	:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Chromatography; paper, pages 262-3, 268-71, GCSE Chemistry; Student Book, Collins, AQA '']		:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Chromatography; paper, pages 262-3, 268-71, GCSE Chemistry; Student Book, Collins, AQA '']
	:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Chromatography; thin layer, pages 263, 269, GCSE Chemistry; Student Book, Collins, AQA '']		:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Chromatography; thin layer, pages 263, 269, GCSE Chemistry; Student Book, Collins, AQA '']
		+
		+	====Edexcel====
		+
		+	:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Chromatography, page 152, GCSE Combined Science, Pearson Edexcel '']
		+	:[https://www.amazon.co.uk/gp/product/1292120215/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120215&linkCode=as2&tag=nrjc-21&linkId=8f96ddb76196848bafdb124354e4cf77 ''Chromatography, page 8, GCSE Chemistry, Pearson, Edexcel '']
		+	:[https://www.amazon.co.uk/gp/product/1782945741/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945741&linkCode=as2&tag=nrjc-21&linkId=30da4f2178da182547b62a7329d13b57 ''Chromatography, pages 102, 103, GCSE Combined Science; The Revision Guide, CGP, Edexcel '']
		+	:[https://www.amazon.co.uk/gp/product/1782948147/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782948147&linkCode=as2&tag=nrjc-21&linkId=f63dcd8345f4e49c717b39a228a36c7c ''Chromatography, pages 107-111, GCSE Chemistry, CGP, Edexcel '']
		+	:[https://www.amazon.co.uk/gp/product/1782945725/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945725&linkCode=as2&tag=nrjc-21&linkId=694be7494de75af3349537d34e13f7f0 ''Chromatography, pages 39, 40, GCSE Chemistry; The Revision Guide, CGP, Edexcel '']
		+	:[https://www.amazon.co.uk/gp/product/1292120215/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120215&linkCode=as2&tag=nrjc-21&linkId=8f96ddb76196848bafdb124354e4cf77 ''Chromatography; paper 8-9, GCSE Chemistry, Pearson, Edexcel '']
		+	:[https://www.amazon.co.uk/gp/product/1292120193/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1292120193&linkCode=as2&tag=nrjc-21&linkId=572df39392fb4200db8391d98ae6314e ''Chromatography; paper, pages 152-153, GCSE Combined Science, Pearson Edexcel '']

← Older revision		Revision as of 11:51, 3 November 2019
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	:d<sub>c</sub> = distance moved by the [[chemical]]		:d<sub>c</sub> = distance moved by the [[chemical]]
	:d<sub>s</sub> = distance moved by the [[solvent]]		:d<sub>s</sub> = distance moved by the [[solvent]]
		+
		+	===References===
		+	====AQA====
		+
		+	:[https://www.amazon.co.uk/gp/product/1782945598/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945598&linkCode=as2&tag=nrjc-21&linkId=ad276ad49df77ab4b40ab4fd0fe09771 ''Chromatography, pages 101, 151, 152, GCSE Combined Science; The Revision Guide, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/0198359381/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0198359381&linkCode=as2&tag=nrjc-21&linkId=47c8d1ae58d8b3a5e2094cd447154558 ''Chromatography, pages 10-11, 182-183, GCSE Chemistry; Third Edition, Oxford University Press, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1471851354/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851354&linkCode=as2&tag=nrjc-21&linkId=9012a0d354024419214fb3ad5ac44ba0 ''Chromatography, pages 137, 139, GCSE Combined Science Trilogy 1, Hodder, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1471851362/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851362&linkCode=as2&tag=nrjc-21&linkId=7d78d70a2044ee9982dae010c94af92a ''Chromatography, pages 157-9, GCSE Combined Science Trilogy 2, Hodder, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1782945571/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945571&linkCode=as2&tag=nrjc-21&linkId=9e29fad914244909903e5e93f8a01d81 ''Chromatography, pages 16, 87, GCSE Chemistry; The Revision Guide, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Chromatography, pages 18, 265, 286-7, GCSE Chemistry; Student Book, Collins, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Chromatography, pages 24, 205-6, 213, GCSE Chemistry, Hodder, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/178294639X/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=178294639X&linkCode=as2&tag=nrjc-21&linkId=51599bb45a2bfaf7c1b6a978b2ca2616 ''Chromatography, pages 35, 36, 200-202, GCSE Combined Science Trilogy; Chemistry, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/1782945962/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945962&linkCode=as2&tag=nrjc-21&linkId=476bb5c8d1dfb5c08ac81b6d4d1c98d8 ''Chromatography, pages 35, 36, 254-256, GCSE Chemistry, CGP, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Chromatography; gas-liquid, pages 270, 282, GCSE Chemistry; Student Book, Collins, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Chromatography; paper, pages 262-3, 268-71, GCSE Chemistry; Student Book, Collins, AQA '']
		+	:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158762&linkCode=as2&tag=nrjc-21&linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Chromatography; thin layer, pages 263, 269, GCSE Chemistry; Student Book, Collins, AQA '']

@@ Line 52: / Line 52: @@
 #Suspend the [[chromatography]] paper in a suitable [[solvent]] just below the pencil line with most of the paper above the [[solvent]].
 #Wait until the [[solvent]] stops rising up the paper.
-#If there is more than one dot on the [[Chromatogram]] then the [[substance]] was [[impure]]. If there is only one dot on the [[Chromatogram]] the [[substance]] was [[pure]].
+#If there is more than one dot on the [[Chromatogram]] then the [[substance]] was [[Pure|impure]]. If there is only one dot on the [[Chromatogram]] the [[substance]] was [[pure]].
 ====Identifying Chemicals by Comparison====

@@ Line 21: / Line 21: @@
 |-
 | style="height:20px; width:500px; text-align:left;" |
-: 1. Draw a pencil line across a piece of [[chromatograph]] paper.
+#Draw a pencil line across a piece of [[chromatograph]] paper.
-: 2. Place a dot of ink on the line.
+#Place a dot of ink on the line.
-: 3. Hang the paper so that it touches the water but do not let the ink go below the water line.
+#Hang the paper so that it touches the water but do not let the ink go below the water line.
-: 4. Allow the water to rise up the paper.
+#Allow the water to rise up the paper.
-: 5. Once the water stops rising up the paper observe the ink to see if any colours have separated.
+#Once the water stops rising up the paper observe the ink to see if any colours have separated.
 |}

@@ Line 46: / Line 46: @@
 ===Method===
 ====Identifying Chemicals by Comparison====
 The [[chromatogram]] from an [[experiment]] can be compared against [[chromatogram]]s of known [[chemical]]s to identify the [[chemical]]s in the original sample.

@@ Line 64: / Line 64: @@
 #Use a ruler to measure the distance that the [[solvent]] has traveled up the paper.
 #Use a ruler to measure the distance that the [[chemical]] has traveled up the paper.
-#Use the equation:
+#Use the following equation to find the [[Retention Factor]]:
 :<math>R_f = \frac{d_c}{d_s}</math>
 :Where:
@@ Line 70: / Line 70: @@
 :d<sub>c</sub> = distance moved by the [[chemical]]
 :d<sub>s</sub> = distance moved by the [[solvent]]